{"id":25099,"date":"2026-07-31T10:55:01","date_gmt":"2026-07-31T01:55:01","guid":{"rendered":"https:\/\/genai-ai.co.jp\/ai-kanri\/?p=25099"},"modified":"2026-08-08T15:26:36","modified_gmt":"2026-08-08T06:26:36","slug":"js-confirm-dialog-guide","status":"publish","type":"post","link":"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/js-confirm-dialog-guide\/","title":{"rendered":"\u30102026\u5e748\u6708\u6700\u65b0\u3011JavaScript\u306econfirm()\u3067OK\u30fb\u30ad\u30e3\u30f3\u30bb\u30eb\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u5411\u3051\u89e3\u8aac"},"content":{"rendered":"\n<style>\n.g-flow-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;}\n.g-flow-item{background:linear-gradient(135deg,#1a1a1a,#2a1015);color:#fff;border-radius:8px;padding:16px 14px;min-width:130px;flex:1;text-align:center;}\n.g-flow-arrow{color:#dc2626;font-size:20px;font-weight:700;}\n.g-card-row{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 32px;}\n.g-card-row>div{flex:1;min-width:220px;}\n@media(max-width:600px){\n  .g-flow-row{flex-direction:column;}\n  .g-flow-arrow{transform:rotate(90deg);}\n  .g-card-row{flex-direction:column;}\n  .g-card-row>div{min-width:100%;}\n}\n<\/style>\n\n\n\n<div style=\"margin:0 0 32px;\">\n  <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/07\/thumb-excel-vba-match-guide-1.jpg\" alt=\"\u30102026\u5e747\u6708\u6700\u65b0\u3011JavaScript\u306econfirm()\u3067OK\u30fb\u30ad\u30e3\u30f3\u30bb\u30eb\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\uff5c\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u5411\u3051\u89e3\u8aac\" style=\"width:100%;height:auto;border-radius:12px;display:block;\">\n<\/div>\n\n\n\n\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u524a\u9664\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u3068\u304d\u306b\u300e\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f\u300f\u3068\u805e\u304d\u305f\u3044\u300d\u300c\u30d5\u30a9\u30fc\u30e0\u3092\u9001\u4fe1\u3059\u308b\u524d\u306b\u3001\u5165\u529b\u5185\u5bb9\u306e\u78ba\u8a8d\u3092\u631f\u307f\u305f\u3044\u300d\u2014\u2014Web\u30b5\u30a4\u30c8\u3084\u30b7\u30b9\u30c6\u30e0\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u3053\u3046\u3057\u305f\u300c\u78ba\u8a8d\u3057\u3066\u304b\u3089\u51e6\u7406\u3092\u9032\u3081\u308b\u300d\u3068\u3044\u3046\u4ed5\u7d44\u307f\u304c\u6b32\u3057\u304f\u306a\u308b\u5834\u9762\u306f\u6570\u591a\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">JavaScript\u306b\u306f\u3001\u3053\u306e\u300c\u78ba\u8a8d\u3057\u3066\u304b\u3089\u9032\u3081\u308b\u300d\u3092\u6570\u884c\u306e\u30b3\u30fc\u30c9\u3067\u5b9f\u73fe\u3067\u304d\u308b<strong>confirm()<\/strong>\u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u304c\u6a19\u6e96\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u5225\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u3082\u306a\u304f\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u6700\u521d\u304b\u3089\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u6a5f\u80fd\u306a\u306e\u3067\u3001\u6b63\u3057\u3044\u66f8\u304d\u65b9\u3055\u3048\u899a\u3048\u308c\u3070\u3059\u3050\u306b\u4f7f\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<strong>confirm()\u306e\u57fa\u672c\u69cb\u6587\u30fb\u623b\u308a\u5024\u306e\u4f7f\u3044\u65b9\u30fb\u5b9f\u52d9\u3067\u306e\u5b9f\u88c5\u4f8b<\/strong>\u304b\u3089\u3001\u300c\u306a\u305c\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3092\u300e\u306f\u3044\u300f\u300e\u3044\u3044\u3048\u300f\u306b\u5909\u3048\u3089\u308c\u306a\u3044\u306e\u304b\u300d\u300c\u30e2\u30c0\u30f3\u306a\u958b\u767a\u73fe\u5834\u3067confirm()\u304c\u3069\u3046\u6271\u308f\u308c\u3066\u3044\u308b\u306e\u304b\u300d\u307e\u3067\u3001\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u306b\u3082\u5206\u304b\u308b\u3088\u3046\u306b\u9806\u3092\u8ffd\u3063\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">confirm()\u306f\u300cJavaScript\u5165\u9580\u300d\u3067\u5fc5\u305a\u51fa\u3066\u304f\u308b\u57fa\u672c\u6a5f\u80fd\u3067\u3059\u304c\u3001\u5b9f\u52d9\u3067\u4f7f\u3046\u3068\u300c\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3092\u5909\u3048\u305f\u3044\u300d\u300c\u3082\u3063\u3068\u30c7\u30b6\u30a4\u30f3\u3092\u304b\u3063\u3053\u3088\u304f\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u8981\u671b\u304c\u5fc5\u305a\u51fa\u3066\u304d\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u57fa\u672c\u306e\u4f7f\u3044\u65b9\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u306e\u300c\u5148\u300d\u306e\u8a71\u307e\u3067\u8e0f\u307f\u8fbc\u307f\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u5f0a\u793e\u3067\u306f\u65e5\u3005\u3001\u304a\u5ba2\u69d8\u306eLP\u3084\u30d5\u30a9\u30fc\u30e0\u306e\u7d30\u304b\u3044\u6319\u52d5\u3092Claude Code\u3067\u8abf\u6574\u3057\u3066\u3044\u307e\u3059\u3002confirm()\u306e\u3088\u3046\u306a\u5c0f\u3055\u306aJavaScript\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3068\u3001\u300c\u4f55\u3092\u3001\u8ab0\u306b\u3001\u3069\u3046\u983c\u3081\u3070\u3044\u3044\u304b\u300d\u306e\u89e3\u50cf\u5ea6\u304c\u4e0a\u304c\u308b\u306e\u3067\u3001\u7d4c\u55b6\u8005\u30fb\u7ba1\u7406\u8077\u306e\u65b9\u306b\u3082\u62bc\u3055\u3048\u3066\u304a\u3044\u3066\u307b\u3057\u3044\u5185\u5bb9\u3067\u3059\u3002<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3092\u6700\u5f8c\u307e\u3067\u8aad\u3080\u3068\u3001\u6b21\u306e6\u3064\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>confirm()\u306e\u57fa\u672c\u69cb\u6587<\/strong>\u3068\u3001OK\/\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u62bc\u3057\u305f\u3068\u304d\u306e\u623b\u308a\u5024\u306e\u4ed5\u7d44\u307f<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>if\u6587<\/strong>\u3092\u4f7f\u3063\u305f\u3001\u78ba\u8a8d\u7d50\u679c\u306b\u5fdc\u3058\u305f\u51e6\u7406\u306e\u5206\u5c90\u65b9\u6cd5<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u524d\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0<\/strong>\u3092\u5b9f\u88c5\u3059\u308b\u5177\u4f53\u7684\u306a\u30b3\u30fc\u30c9\u4f8b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>confirm()\u306e<strong>\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u306b\u6587\u8a00\u3092\u5909\u66f4\u3067\u304d\u306a\u3044<\/strong>\u7406\u7531\u3068\u3001\u305d\u306e\u56de\u907f\u65b9\u6cd5<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30e2\u30c0\u30f3\u306a\u30d6\u30e9\u30a6\u30b6\u3067<strong>confirm()\u304c\u3069\u3046\u5236\u9650\u3055\u308c\u59cb\u3081\u3066\u3044\u308b\u304b<\/strong>\u3068\u3044\u3046\u5b9f\u614b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c<strong>AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306bUI\u4fee\u6b63\u3092\u4f9d\u983c\u3059\u308b\u3068\u304d\u306e\u8003\u3048\u65b9<\/strong><\/span><\/div>\n\n<\/div>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-01\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">01<\/span>\n  <span class=\"section-label\" style=\"display:block;\">BASICS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">confirm()\u3068\u306f\u4f55\u304b<\/span>\n  <span class=\"section-desc\">JavaScript\u306b\u6a19\u6e96\u642d\u8f09\u3055\u308c\u305f\u300c\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u300d\u6a5f\u80fd\u306e\u6b63\u4f53<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>confirm()<\/strong>\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u6a19\u6e96\u3067\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308bJavaScript\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u300cOK\u300d\u304b\u300c\u30ad\u30e3\u30f3\u30bb\u30eb\u300d\u304b\u3092\u9078\u3070\u305b\u308b\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\uff08\u30c0\u30a4\u30a2\u30ed\u30b0\u30dc\u30c3\u30af\u30b9\uff09\u3092\u753b\u9762\u306b\u8868\u793a\u3057\u307e\u3059\u3002\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u8ffd\u52a0\u3084HTML\u306e\u6e96\u5099\u306f\u4e00\u5207\u4e0d\u8981\u3067\u3001JavaScript\u306e\u30b3\u30fc\u30c9\u30921\u884c\u66f8\u304f\u3060\u3051\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>confirm()<\/strong>\uff1a\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u306eJavaScript\u6a5f\u80fd\u306e1\u3064\u3002\u753b\u9762\u306b\u300cOK\u300d\u300c\u30ad\u30e3\u30f3\u30bb\u30eb\u300d\u306e2\u629e\u30dc\u30bf\u30f3\u3092\u6301\u3064\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u3092\u8868\u793a\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u3069\u3061\u3089\u3092\u62bc\u3057\u305f\u304b\u3092\u771f\u507d\u5024\uff08true \/ false\uff09\u3067\u53d7\u3051\u53d6\u308c\u308b\u3002\u7279\u5225\u306a\u6e96\u5099\u306a\u3057\u306b\u3001\u3044\u304d\u306a\u308a\u30b3\u30fc\u30c9\u4e2d\u3067\u547c\u3073\u51fa\u305b\u308b\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f3c\u305f\u6a5f\u80fd\u306b\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u3060\u3051\u306e<strong>alert()<\/strong>\u3084\u3001\u30c6\u30ad\u30b9\u30c8\u5165\u529b\u3092\u6c42\u3081\u308b<strong>prompt()<\/strong>\u304c\u3042\u308a\u307e\u3059\u304c\u3001confirm()\u306f\u300c\u30e6\u30fc\u30b6\u30fc\u306e\u610f\u601d\u78ba\u8a8d\u3092\u3057\u3066\u304b\u3089\u51e6\u7406\u3092\u5206\u5c90\u3055\u305b\u305f\u3044\u300d\u5834\u9762\u306b\u7279\u5316\u3057\u305f\u6a5f\u80fd\u3067\u3059\u3002\u524a\u9664\u30fb\u9001\u4fe1\u30fb\u9000\u4f1a\u30fb\u4e0a\u66f8\u304d\u4fdd\u5b58\u306a\u3069\u3001\u300c\u53d6\u308a\u6d88\u3057\u304c\u304d\u304b\u306a\u3044\u64cd\u4f5c\u300d\u306e\u76f4\u524d\u306b\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>window \u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong>\uff1a\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067JavaScript\u3092\u5b9f\u884c\u3059\u308b\u3068\u304d\u306e\u300c\u4e00\u756a\u5916\u5074\u306e\u5165\u308c\u7269\u300d\u306b\u3042\u305f\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002confirm()\u3084alert()\u3001setTimeout()\u306a\u3069\u306e\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u6a5f\u80fd\u306f\u3001\u5b9f\u306f\u3059\u3079\u3066\u3053\u306ewindow\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u306f\u6b63\u5f0f\u306b\u306f<strong>window.confirm()<\/strong>\u3068\u3044\u3046\u66f8\u304d\u65b9\u304c\u672c\u6765\u306e\u59ff\u3067\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067JavaScript\u3092\u5b9f\u884c\u3059\u308b\u5834\u5408\u3001window\u306f\u300c\u4eca\u8868\u793a\u3057\u3066\u3044\u308b\u30bf\u30d6\u30fb\u30da\u30fc\u30b8\u300d\u3092\u8868\u3059\u30b0\u30ed\u30fc\u30d0\u30eb\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3001\u305d\u306e\u914d\u4e0b\u306b\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u306f<code>window.<\/code>\u3092\u7701\u7565\u3057\u3066\u547c\u3073\u51fa\u305b\u308b\u30eb\u30fc\u30eb\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001confirm('...')\u3068window.confirm('...')\u306f<strong>\u5b8c\u5168\u306b\u540c\u3058\u52d5\u4f5c\u3092\u3059\u308b\u3001\u307e\u3063\u305f\u304f\u540c\u3058\u3082\u306e<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">window.\u3092\u7701\u7565\u3059\u308b\u7406\u7531<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u5b9f\u52d9\u306e\u30b3\u30fc\u30c9\u3067\u306f\u300cconfirm(...)\u300d\u3068\u7701\u7565\u3057\u3066\u66f8\u304b\u308c\u308b\u306e\u304c\u307b\u3068\u3093\u3069\u3067\u3059\u3002window.\u3092\u660e\u793a\u7684\u306b\u66f8\u3044\u3066\u3082\u52d5\u4f5c\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u304c\u3001\u30b3\u30fc\u30c9\u306e\u898b\u305f\u76ee\u304c\u3059\u3063\u304d\u308a\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u8a18\u4e8b\u3067\u3082\u4ee5\u964d\u306f\u7701\u7565\u5f62\u3067\u7d71\u4e00\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1-1. alert() \/ confirm() \/ prompt() \u306e\u9055\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e3\u3064\u306f\u3044\u305a\u308c\u3082\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u6a5f\u80fd\u3067\u3059\u304c\u3001\u5f79\u5272\u304c\u306f\u3063\u304d\u308a\u5206\u304b\u308c\u3066\u3044\u307e\u3059\u3002\u8868\u3067\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u30e1\u30bd\u30c3\u30c9<\/th><th>\u30dc\u30bf\u30f3\u69cb\u6210<\/th><th>\u623b\u308a\u5024<\/th><th>\u4e3b\u306a\u7528\u9014<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>alert()<\/td><td>OK\u306e\u307f<\/td><td>\u306a\u3057\uff08undefined\uff09<\/td><td>\u901a\u77e5\u30fb\u8b66\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8868\u793a<\/td><\/tr>\n<tr><td>confirm()<\/td><td>OK \/ \u30ad\u30e3\u30f3\u30bb\u30eb<\/td><td>true \u307e\u305f\u306f false<\/td><td>\u300c\u9032\u3081\u3066\u3088\u3044\u304b\u300d\u306e\u610f\u601d\u78ba\u8a8d<\/td><\/tr>\n<tr><td>prompt()<\/td><td>OK \/ \u30ad\u30e3\u30f3\u30bb\u30eb \uff0b \u5165\u529b\u6b04<\/td><td>\u5165\u529b\u6587\u5b57\u5217 \u307e\u305f\u306f null<\/td><td>\u7c21\u6613\u7684\u306a\u30c6\u30ad\u30b9\u30c8\u5165\u529b\u306e\u53d6\u5f97<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u306e\u6700\u5927\u306e\u7279\u5fb4\u306f\u3001<strong>\u30e6\u30fc\u30b6\u30fc\u306e\u9078\u629e\u7d50\u679c\u304c\u305d\u306e\u307e\u307etrue \/ false\u3068\u3044\u3046\u771f\u507d\u5024\u3067\u8fd4\u3063\u3066\u304f\u308b<\/strong>\u70b9\u3067\u3059\u3002\u3053\u306e\u623b\u308a\u5024\u3092if\u6587\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u300cOK\u304c\u62bc\u3055\u308c\u305f\u3068\u304d\u3060\u3051\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u300d\u3068\u3044\u3046\u30b7\u30f3\u30d7\u30eb\u306a\u5206\u5c90\u304c\u6570\u884c\u3067\u66f8\u3051\u307e\u3059\u3002\u8a73\u3057\u304f\u306f3\u7ae0\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-02\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">02<\/span>\n  <span class=\"section-label\" style=\"display:block;\">SYNTAX<\/span>\n  <span class=\"section-title\" style=\"display:block;\">confirm()\u306e\u66f8\u304d\u65b9\u30fb\u57fa\u672c\u69cb\u6587<\/span>\n  <span class=\"section-desc\">\u5b9f\u969b\u306b\u624b\u3092\u52d5\u304b\u3057\u3066\u52d5\u4f5c\u3092\u78ba\u8a8d\u3059\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u306e\u66f8\u304d\u65b9\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u30ab\u30c3\u30b3\u306e\u4e2d\u306b\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u306b\u8868\u793a\u3057\u305f\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\uff08\u6587\u5b57\u5217\uff09\u3092\u6e21\u3059\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>confirm(&#x27;\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f&#x27;);<\/code><\/pre>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30fc\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u3068\u3001\u753b\u9762\u306b\u300c\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u3001\u300cOK\u300d\u300c\u30ad\u30e3\u30f3\u30bb\u30eb\u300d\u306e2\u3064\u306e\u30dc\u30bf\u30f3\u3092\u6301\u3064\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u304c\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u306e\u30c7\u30b6\u30a4\u30f3\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30dc\u30bf\u30f3\u306e\u898b\u305f\u76ee\u3084\u914d\u7f6e\u306f\u30d6\u30e9\u30a6\u30b6\uff08Chrome\u3001Safari\u3001Edge\u306a\u3069\uff09\u3054\u3068\u306b\u5fae\u5999\u306b\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u52d5\u4f5c\u306e\u4ed5\u7d44\u307f\u306f\u3059\u3079\u3066\u5171\u901a\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u3068\u3044\u3046\u8868\u8a18\u306b\u3064\u3044\u3066<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">confirm()\u3068\u3044\u3046\u540d\u524d\u3084\u4e00\u90e8\u306e\u89e3\u8aac\u8a18\u4e8b\u306e\u30bf\u30a4\u30c8\u30eb\u304b\u3089\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u30dc\u30bf\u30f3\u3092\u30a4\u30e1\u30fc\u30b8\u3059\u308b\u65b9\u304c\u3044\u307e\u3059\u304c\u3001\u5b9f\u969b\u306b\u8868\u793a\u3055\u308c\u308b\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u306f\u65e5\u672c\u8a9e\u74b0\u5883\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u57fa\u672c\u7684\u306b<strong>\u300cOK\u300d\u300c\u30ad\u30e3\u30f3\u30bb\u30eb\u300d<\/strong>\u3067\u3059\u3002\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u3068\u3044\u3046\u6587\u8a00\u305d\u306e\u3082\u306e\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\uff08\u7406\u7531\u306f5\u7ae0\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\uff09\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u306f\u3001\u547c\u3073\u51fa\u3055\u308c\u305f\u77ac\u9593\u306b<strong>\u305d\u306e\u5834\u3067JavaScript\u306e\u5b9f\u884c\u3092\u4e00\u6642\u505c\u6b62<\/strong>\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304cOK\u307e\u305f\u306f\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u62bc\u3059\u307e\u3067\u3001\u6b21\u306e\u884c\u306e\u30b3\u30fc\u30c9\u306f\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u306f<strong>\u540c\u671f\u7684\uff08synchronous\uff09<\/strong>\u306a\u51e6\u7406\u3068\u547c\u3070\u308c\u308b\u6027\u8cea\u3067\u3001\u975e\u540c\u671f\u51e6\u7406\u306e\u3088\u3046\u306b\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3084Promise\u3092\u4f7f\u308f\u306a\u304f\u3066\u3082\u3001\u300c\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u9589\u3058\u3089\u308c\u308b\u307e\u3067\u5f85\u3064\u300d\u3068\u3044\u3046\u6319\u52d5\u304c\u81ea\u7136\u306b\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u540c\u671f\u51e6\u7406\uff08synchronous\uff09<\/strong>\uff1a\u30b3\u30fc\u30c9\u3092\u4e0a\u304b\u3089\u9806\u756a\u306b\u30011\u884c\u305a\u3064\u5b9f\u884c\u3057\u7d42\u3048\u3066\u304b\u3089\u6b21\u306b\u9032\u3080\u51e6\u7406\u65b9\u5f0f\u3002confirm()\u306f\u547c\u3073\u51fa\u3055\u308c\u305f\u77ac\u9593\u306b\u305d\u306e\u884c\u3067\u51e6\u7406\u304c\u6b62\u307e\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u5fdc\u7b54\u3059\u308b\u307e\u3067\u6b21\u306e\u30b3\u30fc\u30c9\u306b\u9032\u307e\u306a\u3044\u3002\u88cf\u3092\u8fd4\u3059\u3068\u3001confirm()\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u9593\u306f\u305d\u306e\u30da\u30fc\u30b8\u5185\u306e\u4ed6\u306e\u64cd\u4f5c\uff08\u30dc\u30bf\u30f3\u30af\u30ea\u30c3\u30af\u3084\u30b9\u30af\u30ed\u30fc\u30eb\u306a\u3069\uff09\u3082\u57fa\u672c\u7684\u306b\u53d7\u3051\u4ed8\u3051\u306a\u304f\u306a\u308b\u3002<\/p>\n<\/div>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\"><strong>\u2460<\/strong><br><span style=\"font-size:12px;\">confirm()\u304c<br>\u547c\u3073\u51fa\u3055\u308c\u308b<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u2461<\/strong><br><span style=\"font-size:12px;\">\u30d6\u30e9\u30a6\u30b6\u304c<br>\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a<br>\uff08\u51e6\u7406\u304c\u4e00\u6642\u505c\u6b62\uff09<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u2462<\/strong><br><span style=\"font-size:12px;\">\u30e6\u30fc\u30b6\u30fc\u304c<br>OK\/\u30ad\u30e3\u30f3\u30bb\u30eb\u3092<br>\u30af\u30ea\u30c3\u30af<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u2463<\/strong><br><span style=\"font-size:12px;\">true\/false\u304c<br>\u623b\u308a\u5024\u3068\u3057\u3066\u8fd4\u308b<br>\uff08\u51e6\u7406\u304c\u518d\u958b\uff09<\/span><\/div>\n<\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u306e\u306f\u300c\u305d\u306e\u30bf\u30d6\u300d\u3060\u3051<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">confirm()\u304c\u51e6\u7406\u3092\u6b62\u3081\u308b\u306e\u306f\u3001\u3042\u304f\u307e\u3067\u305d\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u547c\u3073\u51fa\u3057\u305f\u30bf\u30d6\uff08\u30da\u30fc\u30b8\uff09\u3060\u3051\u3067\u3059\u3002\u4ed6\u306e\u30bf\u30d6\u3084\u3001\u5225\u306b\u958b\u3044\u3066\u3044\u308b\u30a2\u30d7\u30ea\u306e\u64cd\u4f5c\u304c\u3059\u3079\u3066\u6b62\u307e\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u305d\u306e\u30da\u30fc\u30b8\u81ea\u4f53\u306f\u5fdc\u7b54\u304c\u8fd4\u308b\u307e\u3067\u4e00\u5207\u64cd\u4f5c\u3067\u304d\u306a\u304f\u306a\u308b\u70b9\u306f\u899a\u3048\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-03\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">03<\/span>\n  <span class=\"section-label\" style=\"display:block;\">RETURN VALUE<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u623b\u308a\u5024\u3067\u51e6\u7406\u3092\u5206\u5c90\u3059\u308b<\/span>\n  <span class=\"section-desc\">true \/ false \u3092\u4f7f\u3063\u305f\u6761\u4ef6\u5206\u5c90\u306e\u66f8\u304d\u65b9<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u306e\u672c\u5f53\u306e\u4f7f\u3044\u3069\u3053\u308d\u306f\u3001\u300c\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u300d\u81ea\u4f53\u3067\u306f\u306a\u304f\u3001<strong>\u30e6\u30fc\u30b6\u30fc\u306e\u9078\u629e\u7d50\u679c\u306b\u5fdc\u3058\u3066\u51e6\u7406\u3092\u5909\u3048\u308b\u3053\u3068<\/strong>\u306b\u3042\u308a\u307e\u3059\u3002confirm()\u306e\u623b\u308a\u5024\u306f\u6b21\u306e\u30eb\u30fc\u30eb\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u623b\u308a\u5024\uff08return value\uff09<\/strong>\uff1a\u95a2\u6570\u3084\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\u3057\u305f\u7d50\u679c\u3068\u3057\u3066\u8fd4\u3063\u3066\u304f\u308b\u5024\u306e\u3053\u3068\u3002confirm()\u306e\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u304cOK\u3092\u62bc\u3059\u3068true\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u62bc\u3059\uff08\u307e\u305f\u306f\u00d7\u3067\u9589\u3058\u308b\uff09\u3068false\u3068\u3044\u3046\u771f\u507d\u5024\uff08boolean\uff09\u304c\u623b\u308a\u5024\u306b\u306a\u308b\u3002<\/p>\n<\/div>\n\n\n\n<table>\n<thead><tr><th>\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c<\/th><th>\u623b\u308a\u5024<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>OK\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/td><td>true<\/td><\/tr>\n<tr><td>\u30ad\u30e3\u30f3\u30bb\u30eb\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/td><td>false<\/td><\/tr>\n<tr><td>\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u00d7\u3067\u9589\u3058\u308b\uff0fEsc\u30ad\u30fc\u3092\u62bc\u3059<\/td><td>false\uff08\u30ad\u30e3\u30f3\u30bb\u30eb\u6271\u3044\uff09<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u623b\u308a\u5024\u3092\u5909\u6570\u306b\u53d7\u3051\u53d6\u308a\u3001if\u6587\u3067\u5224\u5b9a\u3059\u308b\u306e\u304c\u57fa\u672c\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>const result = confirm(&#x27;\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f&#x27;);\n\nif (result) {\n  \/\/ OK\u304c\u62bc\u3055\u308c\u305f\u5834\u5408\u306e\u51e6\u7406\n  console.log(&#x27;\u524a\u9664\u3092\u5b9f\u884c\u3057\u307e\u3057\u305f&#x27;);\n} else {\n  \/\/ \u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u305f\u5834\u5408\u306e\u51e6\u7406\n  console.log(&#x27;\u524a\u9664\u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3057\u307e\u3057\u305f&#x27;);\n}<\/code><\/pre>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5909\u6570result\u306b\u306f\u3001OK\u306a\u3089<code>true<\/code>\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u306a\u3089<code>false<\/code>\u304c\u5165\u308a\u307e\u3059\u3002if\u6587\u306f<code>true<\/code>\u306e\u3068\u304d\u306b\u30d6\u30ed\u30c3\u30af\u5185\u306e\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u4ed5\u7d44\u307f\u306a\u306e\u3067\u3001<code>if (result)<\/code>\u3068\u66f8\u304f\u3060\u3051\u3067\u300cOK\u304c\u62bc\u3055\u308c\u305f\u3068\u304d\u3060\u3051\u51e6\u7406\u3092\u9032\u3081\u308b\u300d\u3068\u3044\u3046\u5236\u5fa1\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3-1. \u5909\u6570\u3092\u4f7f\u308f\u305a\u306b1\u884c\u3067\u66f8\u304f\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u52d9\u3067\u306f\u3001\u5909\u6570\u306b\u4e00\u5ea6\u53d7\u3051\u53d6\u3089\u305a\u3001confirm()\u306e\u547c\u3073\u51fa\u3057\u7d50\u679c\u3092\u76f4\u63a5if\u6587\u306e\u6761\u4ef6\u5f0f\u306b\u66f8\u304f\u30d1\u30bf\u30fc\u30f3\u3082\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>if (confirm(&#x27;\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f&#x27;)) {\n  console.log(&#x27;\u524a\u9664\u3092\u5b9f\u884c\u3057\u307e\u3057\u305f&#x27;);\n} else {\n  console.log(&#x27;\u524a\u9664\u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3057\u307e\u3057\u305f&#x27;);\n}<\/code><\/pre>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3069\u3061\u3089\u306e\u66f8\u304d\u65b9\u3067\u3082\u52d5\u4f5c\u306f\u540c\u3058\u3067\u3059\u3002\u51e6\u7406\u306e\u7d50\u679c\u3092\u5f8c\u3067\u5225\u306e\u5834\u6240\u3067\u3082\u4f7f\u3044\u56de\u3057\u305f\u3044\u5834\u5408\u306f\u5909\u6570\u306b\u5165\u308c\u3066\u304a\u304f\u65b9\u304c\u6271\u3044\u3084\u3059\u304f\u3001\u305d\u306e\u5834\u9650\u308a\u306e\u5224\u5b9a\u3067\u3042\u308c\u30701\u884c\u3067\u66f8\u3044\u3066\u3057\u307e\u3046\u65b9\u304c\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3-2. \u4e09\u9805\u6f14\u7b97\u5b50\u3067\u3055\u3089\u306b\u77ed\u304f\u66f8\u304f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u5c90\u3059\u308b\u51e6\u7406\u304c\u5358\u7d14\u306a\u5834\u5408\u306f\u3001<strong>\u4e09\u9805\u6f14\u7b97\u5b50<\/strong>\u3092\u4f7f\u3063\u3066\u3055\u3089\u306b\u77ed\u304f\u66f8\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u4e09\u9805\u6f14\u7b97\u5b50\uff08\u6761\u4ef6\u6f14\u7b97\u5b50\uff09<\/strong>\uff1a\u300c\u6761\u4ef6 ? A\u306e\u5834\u5408\u306e\u5024 : B\u306e\u5834\u5408\u306e\u5024\u300d\u3068\u3044\u3046\u5f62\u5f0f\u3067\u3001if\u6587\u3088\u308a\u3082\u77ed\u304f\u6761\u4ef6\u5206\u5c90\u3092\u66f8\u3051\u308b\u8a18\u6cd5\u3002confirm()\u306e\u623b\u308a\u5024\u306e\u3088\u3046\u306b\u3001\u7d50\u679c\u304ctrue\/false\u306e2\u629e\u306b\u306a\u308b\u5834\u9762\u3068\u7279\u306b\u76f8\u6027\u304c\u826f\u3044\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>const message = confirm(&#x27;\u4fdd\u5b58\u3057\u307e\u3059\u304b\uff1f&#x27;) ? &#x27;\u4fdd\u5b58\u3057\u307e\u3057\u305f&#x27; : &#x27;\u4fdd\u5b58\u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3057\u307e\u3057\u305f&#x27;;\nconsole.log(message);<\/code><\/pre>\n<\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u4f7f\u3044\u5206\u3051\u306e\u76ee\u5b89<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u5206\u5c90\u5f8c\u306e\u51e6\u7406\u304c1\u884c\u306e\u5024\u306e\u4ee3\u5165\u3084\u5358\u7d14\u306a\u51fa\u529b\u3067\u6e08\u3080\u306a\u3089\u4e09\u9805\u6f14\u7b97\u5b50\u3001\u8907\u6570\u884c\u306e\u51e6\u7406\uff08DOM\u64cd\u4f5c\u3084API\u901a\u4fe1\u306a\u3069\uff09\u304c\u5fc5\u8981\u306a\u3089if\u6587\u3001\u3068\u3044\u3046\u306e\u304c\u8aad\u307f\u3084\u3059\u3055\u306e\u89b3\u70b9\u3067\u306e\u76ee\u5b89\u3067\u3059\u3002\u7121\u7406\u306b\u4e09\u9805\u6f14\u7b97\u5b50\u306b\u7d71\u4e00\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-04\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">04<\/span>\n  <span class=\"section-label\" style=\"display:block;\">PRACTICAL USE<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u524d\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u4f5c\u308b<\/span>\n  <span class=\"section-desc\">\u5b9f\u52d9\u3067\u6700\u3082\u3088\u304f\u4f7f\u308f\u308c\u308b\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u304c\u6700\u3082\u5b9f\u52d9\u3067\u6d3b\u8e8d\u3059\u308b\u306e\u304c\u3001<strong>\u30d5\u30a9\u30fc\u30e0\u306e\u9001\u4fe1\u524d\u306b\u300c\u3053\u306e\u5185\u5bb9\u3067\u672c\u5f53\u306b\u9001\u4fe1\u3057\u3066\u3088\u3044\u304b\u300d\u3092\u78ba\u8a8d\u3059\u308b<\/strong>\u5834\u9762\u3067\u3059\u3002\u304a\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\u3084\u7533\u8fbc\u307f\u30d5\u30a9\u30fc\u30e0\u306a\u3069\u3067\u3001\u8aa4\u9001\u4fe1\u3092\u9632\u3050\u76ee\u7684\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>const form = document.getElementById(&#x27;contact-form&#x27;);\n\nform.addEventListener(&#x27;submit&#x27;, function (event) {\n  const ok = confirm(&#x27;\u3053\u306e\u5185\u5bb9\u3067\u9001\u4fe1\u3057\u307e\u3059\u3002\u3088\u308d\u3057\u3044\u3067\u3059\u304b\uff1f&#x27;);\n  if (!ok) {\n    \/\/ \u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u305f\u5834\u5408\u306f\u9001\u4fe1\u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3059\u308b\n    event.preventDefault();\n  }\n});<\/code><\/pre>\n<\/div>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>addEventListener<\/strong>\uff1aHTML\u8981\u7d20\u306b\u5bfe\u3057\u3066\u300c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3089\u300d\u300c\u9001\u4fe1\u3055\u308c\u305f\u3089\u300d\u3068\u3044\u3063\u305f\u30a4\u30d9\u30f3\u30c8\uff08\u51fa\u6765\u4e8b\uff09\u304c\u8d77\u304d\u305f\u3068\u304d\u306b\u3001\u5b9f\u884c\u3059\u308b\u51e6\u7406\u3092\u3042\u3089\u304b\u3058\u3081\u767b\u9332\u3057\u3066\u304a\u304fJavaScript\u306e\u4ed5\u7d44\u307f\u3002\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u300c\u30d5\u30a9\u30fc\u30e0\u304c\u9001\u4fe1\u3055\u308c\u3088\u3046\u3068\u3057\u305f\u3068\u304d\u300d\u306bconfirm()\u3092\u547c\u3073\u51fa\u3059\u51e6\u7406\u3092\u767b\u9332\u3057\u3066\u3044\u308b\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u30dd\u30a4\u30f3\u30c8\u306f<code>event.preventDefault()<\/code>\u3067\u3059\u3002\u30d5\u30a9\u30fc\u30e0\u306esubmit\u30a4\u30d9\u30f3\u30c8\u306f\u3001\u4f55\u3082\u3057\u306a\u3051\u308c\u3070\u305d\u306e\u307e\u307e\u9001\u4fe1\u51e6\u7406\uff08\u30da\u30fc\u30b8\u9077\u79fb\u3084\u901a\u4fe1\uff09\u306b\u9032\u3093\u3067\u3057\u307e\u3044\u307e\u3059\u3002confirm()\u306e\u623b\u308a\u5024\u304cfalse\uff08\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u305f\uff09\u306e\u3068\u304d\u3060\u3051<code>event.preventDefault()<\/code>\u3092\u547c\u3073\u51fa\u3059\u3053\u3068\u3067\u3001<strong>\u9001\u4fe1\u305d\u306e\u3082\u306e\u3092\u6b62\u3081\u308b<\/strong>\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>confirm()\u5358\u4f53\u3067\u306f\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3092\u6b62\u3081\u3089\u308c\u306a\u3044\uff08\u3042\u304f\u307e\u3067\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u51fa\u3059\u3060\u3051\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u9001\u4fe1\u3092\u6b62\u3081\u308b\u306b\u306f<code>event.preventDefault()<\/code>\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u5fc5\u8981\u304c\u3042\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30ad\u30e3\u30f3\u30bb\u30eb\u6642\u306bfalse\u304c\u8fd4\u308b\u524d\u63d0\u3067\u30ed\u30b8\u30c3\u30af\u3092\u66f8\u304f\uff08true\u306e\u5834\u5408\u306f\u4f55\u3082\u3057\u306a\u3051\u308c\u3070\u901a\u5e38\u901a\u308a\u9001\u4fe1\u3055\u308c\u308b\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u524a\u9664\u30dc\u30bf\u30f3\u306a\u3069\u3001\u30ea\u30f3\u30af\u3084\u30dc\u30bf\u30f3\u306e\u30af\u30ea\u30c3\u30af\u51e6\u7406\u3067\u3082\u540c\u3058\u8003\u3048\u65b9\u304c\u4f7f\u3048\u308b<\/span><\/div>\n\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">4-1. \u524a\u9664\u30dc\u30bf\u30f3\u3067\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3060\u3051\u3067\u306a\u304f\u3001\u4e00\u89a7\u753b\u9762\u306e\u300c\u524a\u9664\u300d\u30dc\u30bf\u30f3\u306bconfirm()\u3092\u4ed5\u8fbc\u3080\u306e\u3082\u5178\u578b\u7684\u306a\u4f7f\u3044\u65b9\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>const deleteButton = document.getElementById(&#x27;delete-btn&#x27;);\n\ndeleteButton.addEventListener(&#x27;click&#x27;, function () {\n  if (confirm(&#x27;\u3053\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u3002\u5143\u306b\u623b\u305b\u307e\u305b\u3093\u304c\u3001\u3088\u308d\u3057\u3044\u3067\u3059\u304b\uff1f&#x27;)) {\n    \/\/ \u3053\u3053\u306b\u5b9f\u969b\u306e\u524a\u9664\u51e6\u7406\uff08API\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306a\u3069\uff09\u3092\u66f8\u304f\n    console.log(&#x27;\u524a\u9664\u51e6\u7406\u3092\u5b9f\u884c&#x27;);\n  }\n});<\/code><\/pre>\n<\/div>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u78ba\u8a8d\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u5177\u4f53\u7684\u306b\u66f8\u304f<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u300c\u672c\u5f53\u306b\u3088\u308d\u3057\u3044\u3067\u3059\u304b\uff1f\u300d\u306e\u3088\u3046\u306a\u66d6\u6627\u306a\u6587\u8a00\u3060\u3051\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u4f55\u306b\u5bfe\u3057\u3066\u78ba\u8a8d\u3092\u6c42\u3081\u3089\u308c\u3066\u3044\u308b\u306e\u304b\u5224\u65ad\u3057\u3065\u3089\u304f\u306a\u308a\u307e\u3059\u3002\u300c\u3053\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u3002\u5143\u306b\u623b\u305b\u307e\u305b\u3093\u304c\u3001\u3088\u308d\u3057\u3044\u3067\u3059\u304b\uff1f\u300d\u306e\u3088\u3046\u306b\u3001<strong>\u4f55\u304c\u8d77\u304d\u308b\u304b\u30fb\u53d6\u308a\u6d88\u305b\u308b\u304b<\/strong>\u307e\u3067\u660e\u8a18\u3059\u308b\u306e\u304c\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u300c\u524a\u9664\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u3089\u4e00\u77ac\u3067\u6d88\u3048\u3066\u3057\u307e\u3063\u305f\u300d\u3068\u3044\u3046\u306e\u306f\u3001\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u5178\u578b\u7684\u306a\u4e8b\u6545\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002confirm()\u30921\u3064\u631f\u3080\u3060\u3051\u3067\u9632\u3052\u308b\u4e8b\u6545\u306f\u591a\u3044\u306e\u3067\u3001\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u3067\u3082\u300c\u3053\u3053\u306bconfirm\u304c\u6b32\u3057\u3044\u300d\u3068\u6c17\u3065\u3051\u308b\u3088\u3046\u306b\u306a\u308b\u3068\u3001\u30b7\u30b9\u30c6\u30e0\u6539\u4fee\u306e\u4f1a\u8a71\u304c\u30b9\u30e0\u30fc\u30ba\u306b\u306a\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-05\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">05<\/span>\n  <span class=\"section-label\" style=\"display:block;\">LIMITATION<\/span>\n  <span class=\"section-title\" style=\"display:block;\">confirm()\u306e\u9650\u754c\u3068\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u306a\u3044\u7406\u7531<\/span>\n  <span class=\"section-desc\">\u306a\u305c\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u3068\u3044\u3046\u6587\u8a00\u306b\u5909\u3048\u3089\u308c\u306a\u3044\u306e\u304b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u304f\u306e\u4eba\u304cconfirm()\u3092\u4f7f\u3044\u59cb\u3081\u3066\u6700\u521d\u306b\u3076\u3064\u304b\u308b\u58c1\u304c\u3001<strong>\u300cOK\u300d\u300c\u30ad\u30e3\u30f3\u30bb\u30eb\u300d\u3068\u3044\u3046\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3092\u5909\u66f4\u3067\u304d\u306a\u3044<\/strong>\u3068\u3044\u3046\u5236\u7d04\u3067\u3059\u3002\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u306b\u3057\u305f\u3044\u3001\u300c\u524a\u9664\u3059\u308b\u300d\u300c\u3084\u3081\u308b\u300d\u306b\u3057\u305f\u3044\u3001\u3068\u3044\u3046\u8981\u671b\u306f\u3088\u304f\u3042\u308a\u307e\u3059\u304c\u3001confirm()\u5358\u4f53\u3067\u306f\u3053\u308c\u3092\u5b9f\u73fe\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>\u30e2\u30fc\u30c0\u30eb\u30c0\u30a4\u30a2\u30ed\u30b0<\/strong>\uff1a\u753b\u9762\u306e\u4e00\u90e8\u3092\u8986\u3046\u5f62\u3067\u8868\u793a\u3055\u308c\u3001\u9589\u3058\u308b\uff08\u5fdc\u7b54\u3059\u308b\uff09\u307e\u3067\u306f\u80cc\u5f8c\u306e\u753b\u9762\u3092\u64cd\u4f5c\u3067\u304d\u306a\u3044\u7a2e\u985e\u306e\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u3002confirm()\u304c\u8868\u793a\u3059\u308b\u30c0\u30a4\u30a2\u30ed\u30b0\u306f\u3053\u306e\u30e2\u30fc\u30c0\u30eb\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u4e00\u7a2e\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u306eOS\u30ec\u30d9\u30eb\u306e\u6a5f\u80fd\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u7406\u7531\u306f\u3001confirm()\u304c\u8868\u793a\u3059\u308b\u30c0\u30a4\u30a2\u30ed\u30b0\u304c<strong>\u30d6\u30e9\u30a6\u30b6\uff08\u3042\u308b\u3044\u306fOS\uff09\u304c\u7ba1\u7406\u3059\u308b\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u90e8\u54c1<\/strong>\u3067\u3042\u308a\u3001Web\u30da\u30fc\u30b8\u5074\u306eHTML\u30fbCSS\u306e\u7ba1\u7406\u4e0b\u306b\u306a\u3044\u305f\u3081\u3067\u3059\u3002\u958b\u767a\u8005\u304cJavaScript\u3067\u6e21\u305b\u308b\u306e\u306f\u30e1\u30c3\u30bb\u30fc\u30b8\u672c\u6587\u306e\u6587\u5b57\u5217\u3060\u3051\u3067\u3001\u30dc\u30bf\u30f3\u306e\u30e9\u30d9\u30eb\u30fb\u8272\u30fb\u30d5\u30a9\u30f3\u30c8\u30fb\u914d\u7f6e\u306f\u4e00\u5207\u5909\u66f4\u3067\u304d\u306a\u3044\u8a2d\u8a08\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u305f\u3044\u9805\u76ee<\/th><th>confirm()\u3067\u53ef\u80fd\u304b<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u672c\u6587\u306e\u6587\u5b57\u5217<\/td><td>&#9711; \u53ef\u80fd\uff08\u5f15\u6570\u3067\u6e21\u305b\u308b\uff09<\/td><\/tr>\n<tr><td>\u30dc\u30bf\u30f3\u306e\u6587\u8a00\uff08OK\/\u30ad\u30e3\u30f3\u30bb\u30eb\u4ee5\u5916\u306b\u5909\u66f4\uff09<\/td><td>&#10005; \u4e0d\u53ef\u80fd<\/td><\/tr>\n<tr><td>\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u8272\u30fb\u30c7\u30b6\u30a4\u30f3<\/td><td>&#10005; \u4e0d\u53ef\u80fd<\/td><\/tr>\n<tr><td>\u30dc\u30bf\u30f3\u306e\u6570\uff083\u629e\u306b\u3059\u308b\u306a\u3069\uff09<\/td><td>&#10005; \u4e0d\u53ef\u80fd\uff08OK\/\u30ad\u30e3\u30f3\u30bb\u30eb\u306e2\u629e\u56fa\u5b9a\uff09<\/td><\/tr>\n<tr><td>\u672c\u6587\u306bHTML\uff08\u592a\u5b57\u30fb\u6539\u884c\u30bf\u30b0\u306a\u3069\uff09\u3092\u4f7f\u3046<\/td><td>&#10005; \u4e0d\u53ef\u80fd\uff08\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u307f\uff09<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u306a\u305c\u3053\u306e\u5236\u7d04\u304c\u300c\u610f\u56f3\u7684\u306a\u8a2d\u8a08\u300d\u306a\u306e\u304b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3084\u898b\u305f\u76ee\u3092\u81ea\u7531\u306b\u5909\u3048\u3089\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u60aa\u610f\u306e\u3042\u308b\u30b5\u30a4\u30c8\u304c\u672c\u7269\u306e\u30d6\u30e9\u30a6\u30b6\u306e\u8b66\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u305d\u3063\u304f\u308a\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u507d\u88c5\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u9a19\u3059\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002confirm()\u306e\u300c\u5730\u5473\u3067\u5909\u66f4\u3067\u304d\u306a\u3044\u300d\u898b\u305f\u76ee\u306f\u3001\u3080\u3057\u308d<strong>\u300c\u3053\u308c\u306f\u30d6\u30e9\u30a6\u30b6\u81ea\u8eab\u304c\u51fa\u3057\u3066\u3044\u308b\u78ba\u8a8d\u3067\u3042\u308b\u300d\u3068\u30e6\u30fc\u30b6\u30fc\u306b\u4fe1\u983c\u3055\u305b\u308b\u305f\u3081\u306e\u8a2d\u8a08<\/strong>\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">5-1. \u6539\u884c\u3084\u88c5\u98fe\u3082\u3067\u304d\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u57fa\u672c\u7684\u306b1\u3064\u306e\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u308f\u308c\u3001HTML\u30bf\u30b0\u306f\u53cd\u6620\u3055\u308c\u307e\u305b\u3093\u3002\u6539\u884c\u3092\u5165\u308c\u305f\u3044\u5834\u5408\u306f\u3001\u6587\u5b57\u5217\u306e\u4e2d\u306b\u6539\u884c\u30b3\u30fc\u30c9\uff08<code>\\n<\/code>\uff09\u3092\u542b\u3081\u308b\u3053\u3068\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>confirm(&#x27;\u4ee5\u4e0b\u306e\u5185\u5bb9\u3067\u9001\u4fe1\u3057\u307e\u3059\u3002\\n\\n\u304a\u540d\u524d\uff1a\u5c71\u7530\u592a\u90ce\\n\u30e1\u30fc\u30eb\uff1aexample@example.com\\n\\n\u3088\u308d\u3057\u3044\u3067\u3059\u304b\uff1f&#x27;);<\/code><\/pre>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><code>\\n<\/code>\u306f\u6539\u884c\u3092\u8868\u3059\u7279\u6b8a\u306a\u8a18\u53f7\u3067\u3001\u591a\u304f\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3053\u306e\u8a18\u6cd5\u306b\u3088\u308b\u6539\u884c\u306f\u30c0\u30a4\u30a2\u30ed\u30b0\u5185\u3067\u53cd\u6620\u3055\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u592a\u5b57\u3084\u8272\u4ed8\u3051\u3068\u3044\u3063\u305f\u88c5\u98fe\u306f\u3069\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3082\u4e00\u5207\u53cd\u6620\u3055\u308c\u307e\u305b\u3093\u3002\u3053\u308c\u3082\u300c\u898b\u305f\u76ee\u3092\u81ea\u7531\u306b\u5909\u3048\u3089\u308c\u306a\u3044\u300d\u3068\u3044\u3046\u5236\u7d04\u306e\u4e00\u90e8\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-06\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">06<\/span>\n  <span class=\"section-label\" style=\"display:block;\">CUSTOM DIALOG<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30ab\u30b9\u30bf\u30e0\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u81ea\u4f5c\u3059\u308b\u65b9\u6cd5<\/span>\n  <span class=\"section-desc\">\u30c7\u30b6\u30a4\u30f3\u3092\u81ea\u7531\u306b\u3057\u305f\u3044\u3068\u304d\u306e\u5b9f\u88c5\u30a2\u30d7\u30ed\u30fc\u30c1<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3092\u30d6\u30e9\u30f3\u30c9\u306b\u5408\u308f\u305b\u305f\u3044\u300d\u300c\u30c7\u30b6\u30a4\u30f3\u3092\u30b5\u30a4\u30c8\u306e\u96f0\u56f2\u6c17\u306b\u7d71\u4e00\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u8981\u671b\u304c\u3042\u308b\u5834\u5408\u3001confirm()\u305d\u306e\u3082\u306e\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u306f\u8ae6\u3081\u3066\u3001<strong>HTML\u30fbCSS\u30fbJavaScript\u3067\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u81ea\u4f5c\u3059\u308b<\/strong>\u306e\u304c\u73fe\u5b9f\u7684\u306a\u89e3\u6c7a\u7b56\u3067\u3059\u3002\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u5927\u304d\u304f2\u7a2e\u985e\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6-1. div\u8981\u7d20\u3068CSS\u3067\u81ea\u4f5c\u3059\u308b\uff08\u5f93\u6765\u306e\u65b9\u6cd5\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u3082\u3088\u304f\u4f7f\u308f\u308c\u3066\u304d\u305f\u65b9\u6cd5\u306f\u3001\u975e\u8868\u793a\u306b\u3057\u305fdiv\u8981\u7d20\u3092\u7528\u610f\u3057\u3066\u304a\u304d\u3001\u5fc5\u8981\u306a\u30bf\u30a4\u30df\u30f3\u30b0\u3067CSS\u306e\u8868\u793a\u30fb\u975e\u8868\u793a\u3092\u5207\u308a\u66ff\u3048\u308b\u624b\u6cd5\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>&lt;div id=&quot;custom-dialog&quot; class=&quot;dialog-overlay&quot; style=&quot;display:none;&quot;&gt;\n  &lt;div class=&quot;dialog-box&quot;&gt;\n    &lt;p&gt;\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f&lt;\/p&gt;\n    &lt;button id=&quot;dialog-ok&quot;&gt;\u524a\u9664\u3059\u308b&lt;\/button&gt;\n    &lt;button id=&quot;dialog-cancel&quot;&gt;\u3084\u3081\u308b&lt;\/button&gt;\n  &lt;\/div&gt;\n&lt;\/div&gt;<\/code><\/pre>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u65b9\u6cd5\u3067\u306f\u3001\u30dc\u30bf\u30f3\u306e\u6587\u8a00\uff08\u300c\u524a\u9664\u3059\u308b\u300d\u300c\u3084\u3081\u308b\u300d\u306a\u3069\uff09\u3082\u30c7\u30b6\u30a4\u30f3\u3082\u5b8c\u5168\u306b\u81ea\u7531\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001confirm()\u3068\u9055\u3063\u3066<strong>\u300c\u547c\u3073\u51fa\u3057\u305f\u305d\u306e\u5834\u3067true\/false\u304c\u8fd4\u3063\u3066\u304f\u308b\u300d\u308f\u3051\u3067\u306f\u306a\u3044<\/strong>\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u30dc\u30bf\u30f3\u306e\u30af\u30ea\u30c3\u30af\u30a4\u30d9\u30f3\u30c8\u3092\u500b\u5225\u306b\u76e3\u8996\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u305f\u3068\u304d\u306e\u51e6\u7406\u3092\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u81ea\u4f5c\u30c0\u30a4\u30a2\u30ed\u30b0\u306f\u300c\u540c\u671f\u7684\u300d\u3067\u306f\u306a\u3044<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">confirm()\u306f\u547c\u3073\u51fa\u3057\u305f\u884c\u3067\u51e6\u7406\u304c\u4e00\u6642\u505c\u6b62\u3057\u307e\u3059\u304c\u3001div\u8981\u7d20\u3067\u81ea\u4f5c\u3057\u305f\u30c0\u30a4\u30a2\u30ed\u30b0\u306f\u305f\u3060\u306eHTML\u8981\u7d20\u306a\u306e\u3067\u3001\u8868\u793a\u3057\u305f\u77ac\u9593\u306b\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u306f\u6b21\u306e\u884c\u306b\u9032\u3093\u3067\u3057\u307e\u3044\u307e\u3059\u3002\u300c\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u5fdc\u7b54\u3092\u5f85\u3063\u3066\u304b\u3089\u6b21\u306e\u51e6\u7406\u3092\u3059\u308b\u300d\u305f\u3081\u306b\u306f\u3001Promise\u3084\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u95a2\u6570\u3092\u4f7f\u3063\u3066\u975e\u540c\u671f\u306b\u51e6\u7406\u3092\u7d44\u307f\u7acb\u3066\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">6-2. HTML\u306e &lt;dialog&gt; \u8981\u7d20\u3092\u4f7f\u3046\uff08\u30e2\u30c0\u30f3\u306a\u65b9\u6cd5\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd1\u5e74\u306e\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\uff08Chrome\u30fbEdge\u30fbFirefox\u30fbSafari\u306e\u6700\u65b0\u7248\uff09\u3067\u306f\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u5c02\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f<strong>&lt;dialog&gt;\u8981\u7d20<\/strong>\u304c\u6a19\u6e96\u3067\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002div\u8981\u7d20\u3092\u81ea\u4f5c\u3059\u308b\u3088\u308a\u5c11\u306a\u3044\u30b3\u30fc\u30c9\u3067\u3001\u30e2\u30fc\u30c0\u30eb\u8868\u793a\u30fb\u80cc\u666f\u306e\u534a\u900f\u660e\u5316\uff08\u30d0\u30c3\u30af\u30c9\u30ed\u30c3\u30d7\uff09\u30fb\u30ad\u30fc\u30dc\u30fc\u30c9\u64cd\u4f5c\u5bfe\u5fdc\u307e\u3067\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>&lt;dialog&gt;\u8981\u7d20\uff08HTMLDialogElement\uff09<\/strong>\uff1aHTML5\u4ee5\u964d\u3067\u6a19\u6e96\u5316\u3055\u308c\u305f\u3001\u30e2\u30fc\u30c0\u30eb\u30c0\u30a4\u30a2\u30ed\u30b0\u5c02\u7528\u306eHTML\u30bf\u30b0\u3002JavaScript\u304b\u3089<code>.showModal()<\/code>\u3092\u547c\u3073\u51fa\u3059\u3060\u3051\u3067\u3001\u80cc\u666f\u3092\u6697\u304f\u3057\u3064\u3064\u6700\u524d\u9762\u306b\u8868\u793a\u3067\u304d\u308b\u3002CSS\u3067\u81ea\u7531\u306b\u30c7\u30b6\u30a4\u30f3\u3067\u304d\u3001\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3082\u5b8c\u5168\u306b\u81ea\u7531\u3002confirm()\u3068\u7570\u306a\u308aHTML\u306e\u4e00\u90e8\u3068\u3057\u3066\u7ba1\u7406\u3067\u304d\u308b\u306e\u304c\u6700\u5927\u306e\u5229\u70b9\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"background:#1e1e1e;border-radius:8px;padding:18px 22px;margin:20px 0;overflow-x:auto;\">\n<pre style=\"margin:0;color:#e5e7eb;font-size:13.5px;line-height:1.7;font-family:Consolas,'SFMono-Regular','Liberation Mono',Menlo,monospace;\"><code>&lt;dialog id=&quot;my-dialog&quot;&gt;\n  &lt;p&gt;\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f&lt;\/p&gt;\n  &lt;button id=&quot;ok-btn&quot;&gt;\u524a\u9664\u3059\u308b&lt;\/button&gt;\n  &lt;button id=&quot;cancel-btn&quot;&gt;\u3084\u3081\u308b&lt;\/button&gt;\n&lt;\/dialog&gt;\n\n&lt;script&gt;\nconst dialog = document.getElementById(&#x27;my-dialog&#x27;);\ndocument.getElementById(&#x27;open-btn&#x27;).addEventListener(&#x27;click&#x27;, () =&gt; {\n  dialog.showModal();\n});\ndocument.getElementById(&#x27;ok-btn&#x27;).addEventListener(&#x27;click&#x27;, () =&gt; {\n  console.log(&#x27;\u524a\u9664\u3092\u5b9f\u884c&#x27;);\n  dialog.close();\n});\ndocument.getElementById(&#x27;cancel-btn&#x27;).addEventListener(&#x27;click&#x27;, () =&gt; {\n  dialog.close();\n});\n&lt;\/script&gt;<\/code><\/pre>\n<\/div>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\"><strong>\u2460HTML\u5b9a\u7fa9<\/strong><br><span style=\"font-size:12px;\">&lt;dialog&gt;\u8981\u7d20\u3092<br>\u30da\u30fc\u30b8\u5185\u306b\u7528\u610f<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u2461CSS\u3067\u88c5\u98fe<\/strong><br><span style=\"font-size:12px;\">\u30dc\u30bf\u30f3\u6587\u8a00\u30fb\u8272\u30fb<br>\u914d\u7f6e\u3092\u81ea\u7531\u306b\u8a2d\u5b9a<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u2462JS\u3067\u8868\u793a\u5236\u5fa1<\/strong><br><span style=\"font-size:12px;\">showModal()\u3067\u8868\u793a<br>close()\u3067\u9589\u3058\u308b<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u2463\u7d50\u679c\u3092\u5229\u7528<\/strong><br><span style=\"font-size:12px;\">\u5404\u30dc\u30bf\u30f3\u306e\u30af\u30ea\u30c3\u30af<br>\u30a4\u30d9\u30f3\u30c8\u3067\u51e6\u7406\u3092\u5206\u5c90<\/span><\/div>\n<\/div>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u8ff7\u3063\u305f\u3089&lt;dialog&gt;\u8981\u7d20\u304b\u3089\u691c\u8a0e\u3059\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">2026\u5e74\u73fe\u5728\u3001\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u306f\u3059\u3079\u3066&lt;dialog&gt;\u8981\u7d20\u306b\u5bfe\u5fdc\u6e08\u307f\u3067\u3059\u3002\u300cconfirm()\u3067\u306f\u7269\u8db3\u308a\u306a\u3044\u304c\u3001\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u8ffd\u52a0\u3059\u308b\u307b\u3069\u3067\u3082\u306a\u3044\u300d\u3068\u3044\u3046\u5834\u5408\u306f\u3001\u307e\u305a\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u306e&lt;dialog&gt;\u8981\u7d20\u3067\u5b9f\u73fe\u3067\u304d\u306a\u3044\u304b\u691c\u8a0e\u3059\u308b\u306e\u304c\u3001\u4f9d\u5b58\u95a2\u4fc2\u3092\u5897\u3084\u3055\u306a\u3044\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-07\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">07<\/span>\n  <span class=\"section-label\" style=\"display:block;\">PITFALLS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u3010\u72ec\u81ea\u3011confirm()\u306e\u843d\u3068\u3057\u7a74\u3068\u975e\u63a8\u5968\u306e\u5b9f\u614b<\/span>\n  <span class=\"section-desc\">\u30e2\u30c0\u30f3\u306a\u30d6\u30e9\u30a6\u30b6\u30fb\u958b\u767a\u73fe\u5834\u3067\u3069\u3046\u6271\u308f\u308c\u3066\u3044\u308b\u304b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u304b\u3089\u306f\u3001\u591a\u304f\u306e\u5165\u9580\u8a18\u4e8b\u304c\u3042\u307e\u308a\u89e6\u308c\u306a\u3044<strong>confirm()\u306e\u300c\u73fe\u5728\u5730\u300d<\/strong>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u3001confirm()\u306fJavaScript\u306e\u4ed5\u69d8\uff08HTML Living Standard\uff09\u4e0a\u3067\u6b63\u5f0f\u306b\u300c\u975e\u63a8\u5968\uff08deprecated\uff09\u300d\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3084\u30d6\u30e9\u30a6\u30b6\u306e\u5b9f\u88c5\u30ec\u30d9\u30eb\u3067\u306f\u3001<strong>\u4f7f\u7528\u3092\u907f\u3051\u308b\u30fb\u5236\u9650\u3059\u308b\u65b9\u5411<\/strong>\u306b\u52d5\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u300c\u975e\u63a8\u5968\u300d\u3068\u3044\u3046\u8a00\u8449\u3092\u4f7f\u3046\u3068\u8a9e\u5f0a\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5b9f\u52d9\u3067\u306f\u300e\u52d5\u304f\u3051\u308c\u3069\u3001\u30d7\u30ed\u30c0\u30af\u30c8\u306eUI\u3068\u3057\u3066\u306f\u4f7f\u308f\u306a\u3044\u300f\u3068\u3044\u3046\u6271\u3044\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304c\u5b9f\u614b\u3067\u3059\u3002\u3053\u306e\u6e29\u5ea6\u611f\u306e\u9055\u3044\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u5927\u4e8b\u3067\u3059\u3002<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">7-1. \u306a\u305c\u5b9f\u52d9\u3067\u656c\u9060\u3055\u308c\u308b\u306e\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u304c\u5b9f\u52d9\u306e\u30d7\u30ed\u30c0\u30af\u30c8\u958b\u767a\u3067\u907f\u3051\u3089\u308c\u308b\u7406\u7531\u306f\u3001\u4e3b\u306b3\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u30c7\u30b6\u30a4\u30f3\u3092\u4e00\u5207\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u306a\u3044<\/strong>\uff085\u7ae0\u3067\u89e3\u8aac\u3057\u305f\u901a\u308a\u3001\u30d6\u30e9\u30f3\u30c9\u3084\u4e16\u754c\u89b3\u306b\u5408\u308f\u305b\u3089\u308c\u306a\u3044\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u51e6\u7406\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b<\/strong>\u305f\u3081\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u8868\u793a\u4e2d\u306f\u30da\u30fc\u30b8\u4e0a\u306e\u4ed6\u306e\u64cd\u4f5c\u304c\u4e00\u5207\u3067\u304d\u306a\u304f\u306a\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span><strong>\u9023\u7d9a\u3057\u3066\u547c\u3073\u51fa\u3059\u3068\u30d6\u30e9\u30a6\u30b6\u306b\u6291\u5236\u3055\u308c\u308b<\/strong>\uff08\u5f8c\u8ff0\uff09\u305f\u3081\u3001\u696d\u52d9\u30ed\u30b8\u30c3\u30af\u3068\u3057\u3066\u5b89\u5b9a\u3057\u3066\u4f7f\u3044\u3065\u3089\u3044<\/span><\/div>\n\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u306b3\u3064\u76ee\u306f\u898b\u843d\u3068\u3055\u308c\u304c\u3061\u3067\u3059\u304c\u3001\u5b9f\u52d9\u4e0a\u306f\u91cd\u8981\u306a\u5236\u7d04\u3067\u3059\u3002Chrome\u306a\u3069\u306e\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306f\u3001\u77ed\u6642\u9593\u306e\u3046\u3061\u306b\u4f55\u5ea6\u3082confirm()\u3084alert()\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u3068\u3001<strong>\u300c\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u4ee5\u5f8c\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3057\u306a\u3044\u300d\u3068\u3044\u3046\u6291\u5236\u7528\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9<\/strong>\u3092\u30c0\u30a4\u30a2\u30ed\u30b0\u5185\u306b\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u3053\u306e\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u4ee5\u964d\u305d\u306e\u30da\u30fc\u30b8\u5185\u3067confirm()\u3092\u547c\u3073\u51fa\u3057\u3066\u3082\u3001\u5e38\u306b\u30ad\u30e3\u30f3\u30bb\u30eb\u6271\u3044\uff08false\uff09\u3068\u3057\u3066\u51e6\u7406\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #6b7280;border-radius:0 8px 8px 0;padding:16px 20px;margin:20px 0;\">\n  <p style=\"margin:0 0 4px;font-size:13px;font-weight:700;color:#6b7280;letter-spacing:1px;\">&#128218; \u7528\u8a9e\u89e3\u8aac<\/p>\n  <p style=\"margin:0;font-size:15px;line-height:1.7;\"><strong>beforeunload\u30a4\u30d9\u30f3\u30c8<\/strong>\uff1a\u30e6\u30fc\u30b6\u30fc\u304c\u30da\u30fc\u30b8\u3092\u9589\u3058\u305f\u308a\u5225\u306e\u30da\u30fc\u30b8\u306b\u79fb\u52d5\u3057\u3088\u3046\u3068\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u767a\u751f\u3059\u308bJavaScript\u306e\u30a4\u30d9\u30f3\u30c8\u3002\u300c\u4fdd\u5b58\u3057\u3066\u3044\u306a\u3044\u5185\u5bb9\u304c\u3042\u308a\u307e\u3059\u300d\u3068\u3044\u3063\u305f\u96e2\u8131\u78ba\u8a8d\u306b\u3088\u304f\u4f7f\u308f\u308c\u308b\u304c\u3001confirm()\u3084alert()\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u72ec\u81ea\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u624b\u6cd5\u306f\u3001\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u3067\u5ec3\u6b62\u30fb\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u304b\u308a\u3084\u3059\u3044\u4f8b\u304c<strong>beforeunload\u30a4\u30d9\u30f3\u30c8<\/strong>\u3067\u3059\u3002\u304b\u3064\u3066\u306f\u3001\u30da\u30fc\u30b8\u96e2\u8131\u6642\u306bconfirm()\u3084alert()\u3092\u547c\u3073\u51fa\u3057\u3001\u300c\u7de8\u96c6\u5185\u5bb9\u304c\u4fdd\u5b58\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u672c\u5f53\u306b\u79fb\u52d5\u3057\u307e\u3059\u304b\uff1f\u300d\u3068\u3044\u3063\u305f\u72ec\u81ea\u306e\u6587\u8a00\u3092\u8868\u793a\u3055\u305b\u308b\u5b9f\u88c5\u304c\u3088\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u73fe\u5728\u306eChrome\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u3001beforeunload\u30a4\u30d9\u30f3\u30c8\u5185\u3067\u72ec\u81ea\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b\u4ed5\u7d44\u307f\u306f\u5ec3\u6b62\u3055\u308c\u3066\u304a\u308a\u3001<strong>\u30d6\u30e9\u30a6\u30b6\u304c\u7528\u610f\u3057\u305f\u5b9a\u578b\u306e\u78ba\u8a8d\u30e1\u30c3\u30bb\u30fc\u30b8<\/strong>\u304c\u8868\u793a\u3055\u308c\u308b\u3060\u3051\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u60aa\u610f\u306e\u3042\u308b\u30b5\u30a4\u30c8\u304c\u96e2\u8131\u9632\u6b62\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u4e71\u7528\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u3092\u8db3\u6b62\u3081\u3059\u308b\u554f\u984c\u3078\u306e\u5bfe\u7b56\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u305f\u5236\u9650\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">cross-origin\uff08\u4ed6\u30c9\u30e1\u30a4\u30f3\uff09\u306eiframe\u5185\u3067\u306f\u52d5\u304b\u306a\u3044\u3053\u3068\u304c\u3042\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u81ea\u793e\u30b5\u30a4\u30c8\u306e\u4e2d\u306b\u4ed6\u30c9\u30e1\u30a4\u30f3\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092iframe\u3067\u57cb\u3081\u8fbc\u3093\u3067\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u57cb\u3081\u8fbc\u307f\u5074\uff08cross-origin\u5074\uff09\u306eJavaScript\u304b\u3089confirm()\u3092\u547c\u3073\u51fa\u3057\u3066\u3082\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u3088\u3063\u3066\u306f\u8868\u793a\u81ea\u4f53\u304c\u6291\u5236\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u5916\u90e8\u30b5\u30fc\u30d3\u30b9\u306e\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3084\u5e83\u544a\u67a0\u3092\u57cb\u3081\u8fbc\u3093\u3067\u3044\u308b\u30da\u30fc\u30b8\u3067confirm()\u304c\u52d5\u304b\u306a\u3044\u3001\u3068\u3044\u3046\u4e0d\u5177\u5408\u5831\u544a\u306e\u591a\u304f\u306f\u3053\u308c\u304c\u539f\u56e0\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">7-2. \u300c\u4f7f\u3063\u3066\u306f\u3044\u3051\u306a\u3044\u300d\u308f\u3051\u3067\u306f\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3046\u3057\u305f\u5236\u7d04\u304c\u3042\u308b\u4e00\u65b9\u3067\u3001confirm()\u304c\u300c\u4f7f\u3063\u3066\u306f\u3044\u3051\u306a\u3044\u6a5f\u80fd\u300d\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u793e\u5185\u5411\u3051\u306e\u7ba1\u7406\u753b\u9762\u3084\u3001\u958b\u767a\u4e2d\u306e\u4e00\u6642\u7684\u306a\u78ba\u8a8d\u3001\u3042\u308b\u3044\u306f\u30c7\u30b6\u30a4\u30f3\u3078\u306e\u3053\u3060\u308f\u308a\u304c\u4e0d\u8981\u306a\u5c0f\u898f\u6a21\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308c\u3070\u3001<strong>\u5b9f\u88c5\u30b3\u30b9\u30c8\u306e\u4f4e\u3055<\/strong>\u3068\u3044\u3046confirm()\u306e\u6700\u5927\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u4eca\u3082\u6709\u52b9\u3067\u3059\u3002div\u8981\u7d20\u3084&lt;dialog&gt;\u8981\u7d20\u3067\u306e\u81ea\u4f5c\u306f\u3001\u305d\u306e\u5206\u3060\u3051\u30b3\u30fc\u30c9\u3068\u30c6\u30b9\u30c8\u306e\u624b\u9593\u304c\u5897\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#f0fdf4;border:1px solid #22c55e;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:18px;\">&#128161;<\/span>\n    <strong style=\"color:#16a34a;font-size:15px;\">\u5224\u65ad\u57fa\u6e96\u306f\u30b7\u30f3\u30d7\u30eb<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u300c\u9867\u5ba2\u304c\u76f4\u63a5\u89e6\u308b\u30d7\u30ed\u30c0\u30af\u30c8\u306e\u4e3b\u8981\u306a\u5c0e\u7dda\u304b\u300d\u300c\u30c7\u30b6\u30a4\u30f3\u306e\u7d71\u4e00\u611f\u304c\u6c42\u3081\u3089\u308c\u308b\u304b\u300d\u2014\u2014\u3053\u308c\u3089\u306b\u8a72\u5f53\u3059\u308b\u306a\u3089&lt;dialog&gt;\u8981\u7d20\u306a\u3069\u3067\u306e\u81ea\u4f5c\u3092\u691c\u8a0e\u3057\u3001\u305d\u3046\u3067\u306a\u3044\u793e\u5185\u30c4\u30fc\u30eb\u30fb\u7c21\u6613\u7684\u306a\u78ba\u8a8d\u3067\u3042\u308c\u3070confirm()\u306e\u307e\u307e\u3067\u5341\u5206\u3001\u3068\u3044\u3046\u306e\u304c\u73fe\u5834\u306e\u6e29\u5ea6\u611f\u306b\u8fd1\u3044\u5224\u65ad\u57fa\u6e96\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-08\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">08<\/span>\n  <span class=\"section-label\" style=\"display:block;\">FOR NON-ENGINEERS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u3010\u72ec\u81ea\u3011\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3053\u306e\u77e5\u8b58\u3092\u3069\u3046\u6d3b\u304b\u3059\u304b<\/span>\n  <span class=\"section-desc\">confirm()\u306e\u7d30\u90e8\u3092\u77e5\u308b\u3068\u3001UI\u6539\u4fee\u306e\u4f9d\u983c\u304c\u5909\u308f\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u307e\u3067\u8aad\u3093\u3067\u3001\u300cconfirm()\u306e\u66f8\u304d\u65b9\u306f\u5206\u304b\u3063\u305f\u304c\u3001\u81ea\u5206\u304c\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u308f\u3051\u3067\u306f\u306a\u3044\u300d\u3068\u3044\u3046\u7d4c\u55b6\u8005\u30fb\u7ba1\u7406\u8077\u306e\u65b9\u3082\u591a\u3044\u306f\u305a\u3067\u3059\u3002\u305d\u308c\u3067\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u7ae0\u3067\u306f\u3001<strong>\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u306a\u305c\u3053\u306e\u77e5\u8b58\u3092\u6301\u3064\u610f\u5473\u304c\u3042\u308b\u306e\u304b<\/strong>\u3068\u3044\u3046\u8996\u70b9\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u81ea\u793e\u30b5\u30a4\u30c8\u306e\u30d5\u30a9\u30fc\u30e0\u3084LP\uff08\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\uff09\u3092\u904b\u7528\u3057\u3066\u3044\u308b\u3068\u3001\u300c\u9001\u4fe1\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u3068\u304d\u306b\u78ba\u8a8d\u3092\u631f\u307f\u305f\u3044\u300d\u300c\u524a\u9664\u64cd\u4f5c\u306b\u30ef\u30f3\u30af\u30c3\u30b7\u30e7\u30f3\u6b32\u3057\u3044\u300d\u3068\u3044\u3063\u305f<strong>\u5c0f\u3055\u306aUI\u6539\u5584\u306e\u8981\u671b<\/strong>\u306f\u65e5\u5e38\u7684\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u8981\u671b\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u4f9d\u983c\u3059\u308b\u306b\u306f\u5c0f\u3055\u3059\u304e\u3001\u304b\u3068\u3044\u3063\u3066\u81ea\u5206\u3067\u5b9f\u88c5\u3059\u308b\u306b\u306f\u5c02\u9580\u77e5\u8b58\u304c\u5fc5\u8981\u2014\u2014\u3068\u3044\u3046\u3001\u5b99\u306b\u6d6e\u304d\u3084\u3059\u3044\u30bf\u30b9\u30af\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u5f0a\u793e\u3067\u3082\u3001\u3053\u3046\u3057\u305f\u300c\u5730\u5473\u3060\u3051\u3069\u6bce\u56de\u767a\u751f\u3059\u308b\u300d\u7d30\u304b\u3044Web\u6539\u4fee\u3092\u3001Claude Code\u306e\u3088\u3046\u306aAI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u4efb\u305b\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304b\u3089\u3001\u4f9d\u983c\u304b\u3089\u53cd\u6620\u307e\u3067\u306e\u30b9\u30d4\u30fc\u30c9\u304c\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3057\u305f\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u624b\u3092\u6b62\u3081\u305a\u306b\u3001\u305d\u306e\u65e5\u306e\u3046\u3061\u306b\u76f4\u305b\u308b\u7bc4\u56f2\u304c\u5e83\u304c\u3063\u305f\u611f\u899a\u3067\u3059\u3002<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f0a\u793e\uff08\u682a\u5f0f\u4f1a\u793eGENAI\uff09\u3067\u306f\u3001Claude Max 20x\u30d7\u30e9\u30f3\uff08\u6708\u984d$200\u30fb\u7d0430,000\u5186\uff09\u3092\u5951\u7d04\u3057\u3001\u55b6\u696d\u30fb\u5e83\u544a\u30fb\u7d4c\u7406\u30fb\u79d8\u66f8\u696d\u52d9\u30fb\u8a18\u4e8b\u5236\u4f5c\u306b\u52a0\u3048\u3066\u3001<strong>WordPress\u3084LP\u306e\u7d30\u304b\u3044\u30b9\u30af\u30ea\u30d7\u30c8\u4fee\u6b63\u30fb\u66f8\u304d\u6368\u3066\u306e\u30b3\u30fc\u30c9\u5bfe\u5fdc<\/strong>\u306b\u3082Claude Code\u3092\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u3002confirm()\u3092\u72ec\u81ea\u30c7\u30b6\u30a4\u30f3\u306e&lt;dialog&gt;\u8981\u7d20\u306b\u7f6e\u304d\u63db\u3048\u308b\u3088\u3046\u306a\u4f5c\u696d\u306f\u3001\u307e\u3055\u306b\u3053\u306e\u300c\u90fd\u5ea6\u6570\u6642\u9593\u524a\u6e1b\u300d\u306e\u5bfe\u8c61\u306b\u306a\u3063\u3066\u3044\u308b\u696d\u52d9\u306e\u3072\u3068\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u4f9d\u983c\u306e\u3057\u304b\u305f<\/th><th>\u7d50\u679c<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u300c\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u304b\u3063\u3053\u3088\u304f\u3057\u3066\u300d\uff08\u66d6\u6627\uff09<\/td><td>\u610f\u56f3\u304c\u4f1d\u308f\u308a\u306b\u304f\u304f\u3001\u4fee\u6b63\u306e\u5f80\u5fa9\u304c\u767a\u751f\u3057\u3084\u3059\u3044<\/td><\/tr>\n<tr><td>\u300c\u9001\u4fe1\u30dc\u30bf\u30f3\u306econfirm()\u3092\u3001\u30dc\u30bf\u30f3\u6587\u8a00\u300e\u9001\u4fe1\u3059\u308b\u300f\u300e\u3084\u3081\u308b\u300f\u306e\u30ab\u30b9\u30bf\u30e0\u30c0\u30a4\u30a2\u30ed\u30b0\u306b\u5909\u3048\u3066\u300d\uff08\u5177\u4f53\u7684\uff09<\/td><td>\u4e00\u5ea6\u306e\u4f9d\u983c\u3067\u610f\u56f3\u901a\u308a\u306e\u5b9f\u88c5\u306b\u306a\u308a\u3084\u3059\u3044<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u305f<strong>\u300cconfirm()\u306f\u30dc\u30bf\u30f3\u6587\u8a00\u3092\u5909\u3048\u3089\u308c\u306a\u3044\u300d\u300c\u5909\u3048\u305f\u3044\u306a\u3089&lt;dialog&gt;\u8981\u7d20\u3084\u30ab\u30b9\u30bf\u30e0HTML\u3067\u81ea\u4f5c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u300d<\/strong>\u3068\u3044\u3046\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u3060\u3051\u3067\u3001AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u3078\u306e\u4f9d\u983c\u6587\u304c\u3050\u3063\u3068\u5177\u4f53\u7684\u306b\u306a\u308a\u307e\u3059\u3002\u5c02\u9580\u7528\u8a9e\u3092\u6b63\u78ba\u306b\u4f7f\u3046\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u300c\u4f55\u304c\u5236\u7d04\u3067\u3001\u4f55\u304c\u5b9f\u73fe\u53ef\u80fd\u306a\u306e\u304b\u300d\u306e\u8f2a\u90ed\u3092\u77e5\u3063\u3066\u3044\u308b\u3060\u3051\u3067\u3001\u7121\u99c4\u306a\u5f80\u5fa9\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300cconfirm()\u306e\u898b\u305f\u76ee\u306f\u5909\u3048\u3089\u308c\u306a\u3044\u300d\u3068\u77e5\u3063\u3066\u3044\u308c\u3070\u3001\u3044\u304d\u306a\u308a\u7121\u7406\u306a\u8981\u671b\u3092\u51fa\u3055\u305a\u306b\u6e08\u3080<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u300c&lt;dialog&gt;\u8981\u7d20\u3084\u30ab\u30b9\u30bf\u30e0HTML\u3067\u4f5c\u308a\u76f4\u305b\u3070\u81ea\u7531\u306b\u306a\u308b\u300d\u3068\u77e5\u3063\u3066\u3044\u308c\u3070\u3001\u4ee3\u66ff\u6848\u3092\u63d0\u793a\u3067\u304d\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u8efd\u5fae\u306a\u4fee\u6b63\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u624b\u3092\u6b62\u3081\u305a\u306bAI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3078\u306e\u4f9d\u983c\u3067\u5b8c\u7d50\u3067\u304d\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u4f9d\u983c\u6642\u306b\u300c\u5bfe\u8c61\u306e\u30da\u30fc\u30b8URL\u300d\u300c\u73fe\u5728\u306e\u6319\u52d5\u300d\u300c\u671b\u3080\u6319\u52d5\u300d\u306e3\u70b9\u3092\u4f1d\u3048\u308b\u3068\u3001\u4fee\u6b63\u306e\u7cbe\u5ea6\u304c\u4e0a\u304c\u308b<\/span><\/div>\n\n<\/div>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\"><strong>Step 1<\/strong><br><span style=\"font-size:12px;\">\u696d\u52d9\u62c5\u5f53\u8005\u304c<br>\u300c\u3053\u3053\u3092\u76f4\u3057\u305f\u3044\u300d<br>\u3068\u8a00\u8449\u3067\u4f1d\u3048\u308b<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>Step 2<\/strong><br><span style=\"font-size:12px;\">AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c<br>\u8a72\u5f53\u30b3\u30fc\u30c9\u3092\u7279\u5b9a<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>Step 3<\/strong><br><span style=\"font-size:12px;\">\u4fee\u6b63\u6848\u3092\u63d0\u793a<br>\uff08\u6319\u52d5\u306e\u5909\u5316\u3092\u8aac\u660e\uff09<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>Step 4<\/strong><br><span style=\"font-size:12px;\">\u627f\u8a8d\u306e\u3046\u3048<br>\u672c\u756a\u3078\u53cd\u6620<\/span><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3061\u308d\u3093\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u6587\u8a00\u4fee\u6b63\u306e\u3088\u3046\u306a\u8efd\u5fae\u306a\u5909\u66f4\u3067\u3042\u3063\u3066\u3082\u3001<strong>\u672c\u756a\u74b0\u5883\u306b\u53cd\u6620\u3059\u308b\u524d\u306b\u306f\u4eba\u9593\u306b\u3088\u308b\u6700\u7d42\u78ba\u8a8d\u3092\u631f\u3080<\/strong>\u306e\u304c\u539f\u5247\u3067\u3059\u3002AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u4efb\u305b\u3089\u308c\u308b\u306e\u306f\u300c\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u30fb\u8abf\u3079\u308b\u30fb\u63d0\u6848\u3059\u308b\u300d\u307e\u3067\u306e\u90e8\u5206\u3067\u3042\u308a\u3001\u300c\u53cd\u6620\u3057\u3066\u3088\u3044\u3068\u5224\u65ad\u3059\u308b\u300d\u306e\u306f\u6700\u7d42\u7684\u306b\u696d\u52d9\u62c5\u5f53\u8005\u306e\u5f79\u5272\u3068\u3044\u3046\u4f4d\u7f6e\u3065\u3051\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div style=\"background:#fef2f2;border:2px solid #dc2626;border-radius:8px;padding:20px 24px;margin:24px 0;\">\n  <div style=\"display:flex;align-items:center;gap:8px;margin-bottom:12px;\">\n    <span style=\"font-size:20px;\">&#9888;&#65039;<\/span>\n    <strong style=\"color:#dc2626;font-size:16px;\">\u300c\u5168\u90e8\u81ea\u52d5\u5316\u300d\u3067\u306f\u306a\u3044<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u4efb\u305b\u3089\u308c\u308b\u306e\u306f\u3042\u304f\u307e\u3067\u5b9f\u88c5\u30fb\u8abf\u67fb\u30fb\u63d0\u6848\u306e\u90e8\u5206\u3067\u3059\u3002\u672c\u756a\u53cd\u6620\u306e\u53ef\u5426\u5224\u65ad\u3084\u3001\u9867\u5ba2\u306b\u898b\u3048\u308b\u6587\u8a00\u306e\u6700\u7d42\u30c1\u30a7\u30c3\u30af\u306f\u3001\u5f15\u304d\u7d9a\u304d\u4eba\u9593\u304c\u62c5\u3046\u5de5\u7a0b\u3068\u3057\u3066\u6b8b\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u3082\u300c\u5b8c\u5168\u306b\u624b\u653e\u3057\u3067\u81ea\u52d5\u5316\u3067\u304d\u308b\u300d\u3068\u3044\u3046\u4e3b\u5f35\u3067\u306f\u306a\u304f\u3001\u300c\u5c0f\u3055\u306a\u6539\u4fee\u306e\u5f80\u5fa9\u30b3\u30b9\u30c8\u3092\u6e1b\u3089\u305b\u308b\u300d\u3068\u3044\u3046\u7bc4\u56f2\u3067\u306e\u8a71\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">confirm()\u306e\u3088\u3046\u306a\u5c0f\u3055\u306a\u4ed5\u7d44\u307f\u306e\u7406\u89e3\u304c\u3001\u5b9f\u306f\u300cAI\u306b\u4f55\u3092\u983c\u3081\u3070\u3044\u3044\u304b\u300d\u3092\u898b\u6975\u3081\u308b\u529b\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\u6280\u8853\u3092\u5168\u90e8\u7406\u89e3\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u300e\u4f55\u304c\u3067\u304d\u3066\u3001\u4f55\u304c\u3067\u304d\u306a\u3044\u304b\u300f\u306e\u8f2a\u90ed\u3060\u3051\u306f\u77e5\u3063\u3066\u304a\u304f\u3068\u3001\u65e5\u3005\u306eWeb\u6539\u4fee\u304c\u3050\u3063\u3068\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<div style=\"margin:48px 0 8px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap;\"><a href=\"https:\/\/aikanri.genai-ai.co.jp\/seminar2-blog\/?utm_source=blog&utm_medium=body_cta&utm_content=js-confirm-dialog-guide&blog_slug=js-confirm-dialog-guide\" target=\"_blank\" rel=\"noopener\" aria-label=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff08\u7121\u6599\u30fb1on1\u30fb60\u5206\uff09\u306e\u4e88\u7d04\u753b\u9762\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_seminar_claude_code_2026.jpg\" alt=\"Claude Code \u5b8c\u5168\u89e3\u8aac\u30bb\u30df\u30ca\u30fc\uff5c\u7d4c\u55b6\u8005\u30fb\u4f1a\u793e\u5f79\u54e1\u5c02\u7528 1on1 60\u5206 \u7121\u6599\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=body_cta&utm_campaign=js-confirm-dialog-guide&utm_content=body_cta-kanri\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u9b3c\u7ba1\u7406 \u516c\u5f0f\u30b5\u30a4\u30c8\u3078\" style=\"flex:1 1 280px;max-width:360px;text-decoration:none;\"><img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/05\/cta_blog_1to1.jpg\" alt=\"Claude Code\u3092\u7d4c\u55b6\u306b\u6d3b\u304b\u3057\u305f\u3044\u65b9\u3078 \u2014 AI\u9b3c\u7ba1\u7406\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\n\n\n\n<div id=\"sec-09\"><\/div>\n<h2 class=\"section-header-img\" style=\"margin:32px 0 24px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#1a1a1a 0%,#2a1015 100%);padding:32px 28px;color:#fff;position:relative;border:none;border-left:none;text-align:left;\">\n  <span class=\"section-number\" style=\"display:block;\">09<\/span>\n  <span class=\"section-label\" style=\"display:block;\">CONCLUSION<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u307e\u3068\u3081<\/span>\n  <span class=\"section-desc\">confirm()\u306f\u300c\u30b7\u30f3\u30d7\u30eb\u3060\u304c\u5236\u7d04\u3082\u591a\u3044\u300d\u3053\u3068\u3092\u8e0f\u307e\u3048\u3066\u4f7f\u3046<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001JavaScript\u306econfirm()\u306e\u57fa\u672c\u69cb\u6587\u304b\u3089\u3001\u623b\u308a\u5024\u3092\u4f7f\u3063\u305f\u6761\u4ef6\u5206\u5c90\u3001\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u524d\u306e\u78ba\u8a8d\u5b9f\u88c5\u3001\u30dc\u30bf\u30f3\u6587\u8a00\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u306a\u3044\u7406\u7531\u3001\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u3067\u306e\u5236\u9650\u306e\u5b9f\u614b\u3001\u305d\u3057\u3066\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3053\u306e\u77e5\u8b58\u3092\u3069\u3046\u6d3b\u304b\u305b\u308b\u304b\u307e\u3067\u3092\u6574\u7406\u3057\u307e\u3057\u305f\u3002\u6700\u5f8c\u306b\u30dd\u30a4\u30f3\u30c8\u3092\u632f\u308a\u8fd4\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"background:#fafafa;border-radius:8px;padding:16px 20px;margin:16px 0;border-left:4px solid #dc2626;\">\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>confirm()\u306f\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3001window.confirm()\u3068\u5b8c\u5168\u306b\u540c\u3058\u3082\u306e<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>OK\u3092\u62bc\u3059\u3068true\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u62bc\u3059\u3068false\u304c\u623b\u308a\u5024\u3068\u3057\u3066\u8fd4\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>if\u6587\u3084\u4e09\u9805\u6f14\u7b97\u5b50\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u78ba\u8a8d\u7d50\u679c\u306b\u5fdc\u3058\u305f\u51e6\u7406\u306e\u5206\u5c90\u3092\u66f8\u304f<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u3092\u6b62\u3081\u308b\u306b\u306f\u3001confirm()\u5358\u4f53\u3067\u306f\u306a\u304fevent.preventDefault()\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u5fc5\u8981<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u30fb\u30c7\u30b6\u30a4\u30f3\u306f\u5909\u66f4\u3067\u304d\u306a\u3044\uff08\u30d6\u30e9\u30a6\u30b6\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u90e8\u54c1\u306e\u305f\u3081\uff09<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30c7\u30b6\u30a4\u30f3\u3092\u81ea\u7531\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u3001div\u8981\u7d20\u306e\u81ea\u4f5c\u304b&lt;dialog&gt;\u8981\u7d20\u306e\u5229\u7528\u3092\u691c\u8a0e\u3059\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u9023\u7d9a\u547c\u3073\u51fa\u3057\u306e\u6291\u5236\u3084beforeunload\u3067\u306e\u5236\u9650\u304c\u9032\u3093\u3067\u3044\u308b<\/span><\/div>\n<div style=\"display:flex;align-items:flex-start;gap:8px;padding:6px 0;font-size:15px;line-height:1.6;\"><span style=\"color:#dc2626;font-size:16px;flex-shrink:0;margin-top:2px;\">&#10004;&#65039;<\/span><span>\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u3082\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3068\u3001AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3078\u306e\u6539\u4fee\u4f9d\u983c\u304c\u5177\u4f53\u7684\u306b\u306a\u308b<\/span><\/div>\n\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">confirm()\u306f\u3001JavaScript\u5165\u9580\u8005\u304c\u6700\u521d\u306b\u89e6\u308c\u308b\u6a5f\u80fd\u3067\u3042\u308a\u306a\u304c\u3089\u3001\u5b9f\u52d9\u30ec\u30d9\u30eb\u3067\u4f7f\u3044\u3053\u306a\u3059\u306b\u306f\u300c\u4f55\u304c\u3067\u304d\u3066\u3001\u4f55\u304c\u3067\u304d\u306a\u3044\u304b\u300d\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308b\u6a5f\u80fd\u3067\u3059\u3002\u5358\u7d14\u306a\u78ba\u8a8d\u51e6\u7406\u3067\u3042\u308c\u3070\u305d\u306e\u307e\u307e\u4f7f\u3044\u3001\u30c7\u30b6\u30a4\u30f3\u306e\u81ea\u7531\u5ea6\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u6642\u70b9\u3067\u81ea\u4f5c\u30c0\u30a4\u30a2\u30ed\u30b0\u3078\u306e\u5207\u308a\u66ff\u3048\u3092\u691c\u8a0e\u3059\u308b\u2014\u2014\u3053\u306e\u5224\u65ad\u57fa\u6e96\u3092\u6301\u3063\u3066\u304a\u304f\u3060\u3051\u3067\u3001\u5b9f\u88c5\u306e\u624b\u623b\u308a\u3092\u5927\u304d\u304f\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/ceo-sugasawa.jpg\" alt=\"\u4ee3\u8868\u83c5\u6fa4\">\n    <span class=\"balloon-name\">\u4ee3\u8868\u83c5\u6fa4<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u5f0a\u793e\u3067\u306f\u300cAI\u9b3c\u7ba1\u7406\u300d\u3068\u3044\u3046\u30b5\u30fc\u30d3\u30b9\u3067\u3001Claude Code\u3092\u4f7f\u3063\u305f\u696d\u52d9\u81ea\u52d5\u5316\u3084Web\u6539\u4fee\u306e\u5b9f\u52d9\u4f34\u8d70\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002confirm()\u306e\u3088\u3046\u306a\u5c0f\u3055\u306a\u4ed5\u7d44\u307f\u306e\u6539\u4fee\u4f9d\u983c\u3082\u542b\u3081\u3001\u65e5\u3005\u306e\u300c\u5730\u5473\u3060\u3051\u3069\u6642\u9593\u304c\u304b\u304b\u308b\u300d\u4f5c\u696d\u3092\u3069\u3046\u624b\u653e\u3057\u3066\u3044\u3051\u308b\u304b\u3001\u7121\u6599\u76f8\u8ac7\u3067\u5177\u4f53\u7684\u306b\u304a\u7b54\u3048\u3057\u3066\u3044\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">LP\u3084\u30d5\u30a9\u30fc\u30e0\u306e\u7d30\u304b\u3044\u6539\u4fee\u3001AI\u9b3c\u7ba1\u7406\u304c\u5b9f\u88c5\u307e\u3067\u4f34\u8d70\u3057\u307e\u3059<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u306e\u3088\u3046\u306a\u5c0f\u3055\u306a\u6539\u4fee\u304b\u3089\u3001\u696d\u52d9\u5168\u4f53\u306e\u81ea\u52d5\u5316\u8a2d\u8a08\u307e\u3067\u3002<br>Claude Code\u3092\u5b9f\u52d9\u3067\u3069\u3046\u4f7f\u3046\u304b\u3001\u5f0a\u793e\u306e\u904b\u7528\u30ce\u30a6\u30cf\u30a6\u3092\u3082\u3068\u306b\u3054\u76f8\u8ac7\u3092\u627f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"balloon-wrap is-right\">\n  <div class=\"balloon-icon\">\n    <img decoding=\"async\" src=\"https:\/\/genai-ai.co.jp\/ai-kanri\/wp-content\/uploads\/2026\/04\/yamazaki-avatar.png\" alt=\"AI\u9b3c\u7ba1\u7406\u5c71\u5d0e\">\n    <span class=\"balloon-name\">AI\u9b3c\u7ba1\u7406\u5c71\u5d0e<\/span>\n  <\/div>\n  <div class=\"balloon-body\">\u300c\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u983c\u3080\u307b\u3069\u3067\u306f\u306a\u3044\u304c\u3001\u81ea\u5206\u3067\u3082\u76f4\u305b\u306a\u3044\u300d\u2014\u2014\u305d\u3093\u306a\u7d30\u304b\u3044Web\u6539\u4fee\u306e\u3054\u76f8\u8ac7\u3082\u6b53\u8fce\u3067\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u76f8\u8ac7\u3067\u3001\u73fe\u72b6\u306e\u4f9d\u983c\u30d5\u30ed\u30fc\u306e\u3069\u3053\u3092\u52b9\u7387\u5316\u3067\u304d\u308b\u304b\u4e00\u7dd2\u306b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/div>\n<\/div>\n\n\n\n<div style=\"background:#fff;border:2px solid #eee;border-radius:16px;padding:32px 20px;margin:48px 0 16px;\">\n  <p style=\"text-align:center;font-size:13px;font-weight:700;color:#dc2626;letter-spacing:2px;margin:0 0 12px;\">NEXT STEP<\/p>\n  <p style=\"text-align:center;font-size:22px;font-weight:800;line-height:1.5;color:#1a1a1a;margin:0 0 24px;\">\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u3092\u3001\u3042\u306a\u305f\u306e\u30d3\u30b8\u30cd\u30b9\u3067<br>\u5b9f\u8df5\u3057\u3066\u307f\u307e\u305b\u3093\u304b\uff1f<\/p>\n  <div style=\"display:flex;gap:16px;flex-wrap:wrap;justify-content:center;\">\n    <div style=\"flex:1 1 300px;max-width:560px;background:#fafafa;border:1px solid #eee;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;\">\n      <img src=\"https:\/\/genai-ai.co.jp\/img\/flagship-onikanri.png\" alt=\"AI\u9b3c\u7ba1\u7406 \u2014 Claude Code\u5c0e\u5165\u652f\u63f4\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;aspect-ratio:16\/9;object-fit:cover;display:block;\">\n      <div style=\"padding:20px 20px 24px;display:flex;flex-direction:column;flex:1;\">\n        <p style=\"font-size:13px;color:#dc2626;font-weight:700;margin:0 0 8px;\">AI\u6d3b\u7528\u3092\u81ea\u793e\u3067\u56de\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u305f\u3044\u65b9\u3078<\/p>\n        <p style=\"font-size:20px;font-weight:800;color:#1a1a1a;margin:0 0 12px;\">AI\u9b3c\u7ba1\u7406<\/p>\n        <p style=\"font-size:14px;color:#555;margin:0 0 20px;line-height:1.7;\">Claude Code\u30fbCowork\u5c0e\u5165\u652f\u63f4\u304b\u3089\u696d\u52d9\u8a2d\u8a08\u30fb\u793e\u5185\u6d78\u900f\u307e\u3067\u5b9f\u8df5\u30d9\u30fc\u30b9\u3067\u4f34\u8d70\u3002\u300c\u81ea\u793e\u3067\u56de\u305b\u308b\u7d44\u7e54\u300d\u309290\u65e5\u3067\u4f5c\u308b\u7d4c\u55b6\u8005\u5411\u3051\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3002<\/p>\n        <div style=\"text-align:center;margin-top:auto;\">\n          <a href=\"https:\/\/aikanri.genai-ai.co.jp\/?utm_source=blog&utm_medium=article&utm_campaign=js-confirm-dialog-guide&utm_content=next-step-cta\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#dc2626;color:#fff;font-weight:700;font-size:15px;padding:14px 32px;border-radius:30px;text-decoration:none;\">AI\u9b3c\u7ba1\u7406\u3092\u8a73\u3057\u304f\u898b\u308b \u2192<\/a>\n        <\/div>\n      <\/div>\n    <\/div>\n    <div style=\"flex:1 1 300px;max-width:560px;background:#fafafa;border:1px solid #eee;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;\">\n      <img src=\"https:\/\/genai-ai.co.jp\/img\/flagship-aibpo.png\" alt=\"AIBPO by AI\u9b3c\u7ba1\u7406 \u2014 \u5b9a\u578b\u696d\u52d9\u306e\u4e38\u3054\u3068\u4ee3\u884c\" loading=\"lazy\" decoding=\"async\" style=\"width:100%;height:auto;aspect-ratio:16\/9;object-fit:cover;display:block;\">\n      <div style=\"padding:20px 20px 24px;display:flex;flex-direction:column;flex:1;\">\n        <p style=\"font-size:13px;color:#dc2626;font-weight:700;margin:0 0 8px;\">\u696d\u52d9\u3092\u4e38\u3054\u3068\u4efb\u305b\u305f\u3044\u65b9\u3078<\/p>\n        <p style=\"font-size:20px;font-weight:800;color:#1a1a1a;margin:0 0 12px;\">AIBPO by AI\u9b3c\u7ba1\u7406<\/p>\n        <p style=\"font-size:14px;color:#555;margin:0 0 20px;line-height:1.7;\">\u8acb\u6c42\u51e6\u7406\u30fb\u30c7\u30fc\u30bf\u5165\u529b\u30fb\u554f\u3044\u5408\u308f\u305b\u5bfe\u5fdc\u306a\u3069\u306e\u5b9a\u578b\u696d\u52d9\u3092\u3001AI\u00d7\u4eba\u306e\u54c1\u8cea\u7ba1\u7406\u4f53\u5236\u3067\u4e38\u3054\u3068\u4ee3\u884c\u3002\u3044\u307e\u306e\u30b3\u30b9\u30c8\u306e75%\u76ee\u5b89\u3067\u3001\u65e5\u3005\u306f\u6210\u679c\u7269\u3092\u627f\u8a8d\u3059\u308b\u3060\u3051\u3002<\/p>\n        <div style=\"text-align:center;margin-top:auto;\">\n          <a href=\"https:\/\/genai-ai.co.jp\/ai-kanri\/ai-bpo\/?utm_source=blog&utm_medium=article&utm_campaign=js-confirm-dialog-guide&utm_content=next-step-cta-bpo\" target=\"_blank\" rel=\"noopener\" style=\"display:inline-block;background:#dc2626;color:#fff;font-weight:700;font-size:15px;padding:14px 32px;border-radius:30px;text-decoration:none;\">AIBPO\u3092\u8a73\u3057\u304f\u898b\u308b \u2192<\/a>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faq\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q. confirm()\u3068window.confirm()\u306f\u9055\u3046\u3082\u306e\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u9055\u3044\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d6\u30e9\u30a6\u30b6\u4e0a\u306eJavaScript\u3067\u306f\u3001confirm()\u306f\u672c\u6765window.confirm()\u3068\u3044\u3046\u66f8\u304d\u65b9\u304c\u6b63\u5f0f\u306a\u5f62\u3067\u3059\u304c\u3001window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30bd\u30c3\u30c9\u306fwindow.\u3092\u7701\u7565\u3057\u3066\u547c\u3073\u51fa\u305b\u308b\u6c7a\u307e\u308a\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001confirm()\u3068window.confirm()\u306f\u5b8c\u5168\u306b\u540c\u3058\u52d5\u4f5c\u3092\u3059\u308b\u540c\u4e00\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u5b9f\u52d9\u306e\u30b3\u30fc\u30c9\u3067\u306f\u7701\u7565\u5f62\u304c\u4f7f\u308f\u308c\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. confirm()\u306e\u30dc\u30bf\u30f3\u306e\u6587\u8a00\uff08OK\/\u30ad\u30e3\u30f3\u30bb\u30eb\uff09\u3092\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u306b\u5909\u66f4\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u3067\u304d\u307e\u305b\u3093\u3002confirm()\u304c\u8868\u793a\u3059\u308b\u30c0\u30a4\u30a2\u30ed\u30b0\u306f\u30d6\u30e9\u30a6\u30b6\u304c\u7ba1\u7406\u3059\u308b\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u90e8\u54c1\u3067\u3001JavaScript\u304b\u3089\u6e21\u305b\u308b\u306e\u306f\u672c\u6587\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u6587\u5b57\u5217\u306e\u307f\u3067\u3059\u3002\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u30fb\u8272\u30fb\u30c7\u30b6\u30a4\u30f3\u3092\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u3053\u306e\u8a18\u4e8b\u306e6\u7ae0\u3067\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306b\u3001HTML\/CSS\u3067\u81ea\u4f5c\u3059\u308b\u304b\u3001&lt;dialog&gt;\u8981\u7d20\u3092\u4f7f\u3063\u3066\u30bc\u30ed\u304b\u3089\u5b9f\u88c5\u3057\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. confirm()\u306e\u623b\u308a\u5024\u306f\u3069\u3046\u4f7f\u3048\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. OK\u304c\u62bc\u3055\u308c\u308b\u3068true\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u308b\u3068false\u3068\u3044\u3046\u771f\u507d\u5024\u304c\u8fd4\u308a\u307e\u3059\u3002\u3053\u306e\u5024\u3092if\u6587\u306e\u6761\u4ef6\u5f0f\u306b\u4f7f\u3046\u3053\u3068\u3067\u300cOK\u306e\u3068\u304d\u3060\u3051\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u300d\u3068\u3044\u3046\u5206\u5c90\u304c\u66f8\u3051\u307e\u3059\u3002\u5909\u6570\u306b\u4e00\u5ea6\u53d7\u3051\u53d6\u3063\u3066\u304b\u3089\u5224\u5b9a\u3059\u308b\u65b9\u6cd5\u3068\u3001if\u6587\u306e\u6761\u4ef6\u5f0f\u306b\u76f4\u63a5confirm()\u3092\u66f8\u304f\u65b9\u6cd5\u306e\u3069\u3061\u3089\u3067\u3082\u540c\u3058\u7d50\u679c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. confirm()\u3092\u4f7f\u3046\u3068\u30da\u30fc\u30b8\u306e\u52d5\u304d\u304c\u6b62\u307e\u308b\u306e\u306f\u672c\u5f53\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u672c\u5f53\u3067\u3059\u3002confirm()\u306f\u540c\u671f\u51e6\u7406\u3068\u547c\u3070\u308c\u308b\u65b9\u5f0f\u3067\u52d5\u4f5c\u3057\u3001\u547c\u3073\u51fa\u3055\u308c\u305f\u77ac\u9593\u306b\u305d\u306e\u884c\u3067JavaScript\u306e\u5b9f\u884c\u304c\u4e00\u6642\u505c\u6b62\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304cOK\u307e\u305f\u306f\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u62bc\u3059\u307e\u3067\u3001\u305d\u306e\u30da\u30fc\u30b8\u5185\u306e\u4ed6\u306e\u64cd\u4f5c\uff08\u30af\u30ea\u30c3\u30af\u3084\u30b9\u30af\u30ed\u30fc\u30eb\u306a\u3069\uff09\u3082\u57fa\u672c\u7684\u306b\u53d7\u3051\u4ed8\u3051\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u6b62\u307e\u308b\u306e\u306f\u305d\u306e\u30bf\u30d6\u30fb\u30da\u30fc\u30b8\u306e\u307f\u3067\u3001\u4ed6\u306e\u30bf\u30d6\u3084\u5225\u30a2\u30d7\u30ea\u306e\u52d5\u4f5c\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. confirm()\u306f\u975e\u63a8\u5968\uff08deprecated\uff09\u306a\u306e\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. JavaScript\u306e\u4ed5\u69d8\u66f8\u4e0a\u3001\u6b63\u5f0f\u306b\u975e\u63a8\u5968\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u30c7\u30b6\u30a4\u30f3\u3092\u5909\u66f4\u3067\u304d\u306a\u3044\u30fb\u51e6\u7406\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u30fb\u9023\u7d9a\u547c\u3073\u51fa\u3057\u304c\u30d6\u30e9\u30a6\u30b6\u306b\u6291\u5236\u3055\u308c\u308b\u3068\u3044\u3063\u305f\u5236\u7d04\u304b\u3089\u3001\u5b9f\u52d9\u306e\u30d7\u30ed\u30c0\u30af\u30c8\u958b\u767a\u3067\u306f\u4f7f\u7528\u3092\u907f\u3051\u3001&lt;dialog&gt;\u8981\u7d20\u306a\u3069\u3078\u306e\u7f6e\u304d\u63db\u3048\u3092\u9078\u3076\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u793e\u5185\u30c4\u30fc\u30eb\u3084\u7c21\u6613\u7684\u306a\u78ba\u8a8d\u7528\u9014\u3067\u306f\u4eca\u3067\u3082\u554f\u984c\u306a\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3082confirm()\u306f\u540c\u3058\u3088\u3046\u306b\u52d5\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u57fa\u672c\u7684\u306a\u623b\u308a\u5024\u306e\u4ed5\u7d44\u307f\uff08OK\u3067true\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3067false\uff09\u306f\u540c\u3058\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u898b\u305f\u76ee\u3084\u30dc\u30bf\u30f3\u306e\u914d\u7f6e\u306f\u30e2\u30d0\u30a4\u30eb\u30d6\u30e9\u30a6\u30b6\uff08Chrome for Android\u3084Mobile Safari\u306a\u3069\uff09\u3054\u3068\u306b\u30c7\u30b6\u30a4\u30f3\u304c\u7570\u306a\u308a\u3001PC\u7248\u3068\u306f\u8868\u793a\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u6319\u52d5\u3092\u78ba\u8a8d\u3059\u308b\u969b\u306f\u3001\u5bfe\u8c61\u3068\u3059\u308b\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u7aef\u672b\u3084\u30d6\u30e9\u30a6\u30b6\u3067\u5b9f\u6a5f\u30c6\u30b9\u30c8\u3092\u3057\u3066\u304a\u304f\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. confirm()\u306e\u4ee3\u308f\u308a\u306b\u4f55\u3092\u4f7f\u3048\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u30c7\u30b6\u30a4\u30f3\u3092\u81ea\u7531\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u30016\u7ae0\u3067\u7d39\u4ecb\u3057\u305fHTML\u306e&lt;dialog&gt;\u8981\u7d20\u306e\u5229\u7528\u304c\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u6a5f\u80fd\u306a\u306e\u3067\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001CSS\u3067\u81ea\u7531\u306b\u88c5\u98fe\u3067\u304d\u3001\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3082\u81ea\u7531\u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u3088\u308a\u9ad8\u5ea6\u306a\u6f14\u51fa\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001SweetAlert2\u306a\u3069\u306e\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u691c\u8a0e\u3059\u308b\u958b\u767a\u73fe\u5834\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304cLP\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u76f4\u3057\u305f\u3044\u3068\u304d\u3001\u4f55\u3092\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u307e\u305a\u306f\u300c\u73fe\u5728\u3069\u3046\u52d5\u3044\u3066\u3044\u3066\u3001\u3069\u3046\u5909\u3048\u305f\u3044\u304b\u300d\u3092\u5177\u4f53\u7684\u306b\u8a00\u8449\u306b\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u89e6\u308c\u305f\u3088\u3046\u306b\u3001confirm()\u306f\u30dc\u30bf\u30f3\u6587\u8a00\u3092\u5909\u3048\u3089\u308c\u306a\u3044\u4ed5\u7d44\u307f\u3060\u3068\u7406\u89e3\u3057\u3066\u3044\u308c\u3070\u3001\u300c\u6587\u8a00\u3092\u5909\u3048\u305f\u3044\u306a\u3089\u4f5c\u308a\u76f4\u3057\u304c\u5fc5\u8981\u300d\u3068\u3044\u3046\u524d\u63d0\u3092\u6301\u3063\u3066\u4f9d\u983c\u3067\u304d\u307e\u3059\u3002\u8efd\u5fae\u306a\u4fee\u6b63\u3067\u3042\u308c\u3070\u3001AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u5bfe\u8c61\u30da\u30fc\u30b8\u3068\u671b\u3080\u6319\u52d5\u3092\u4f1d\u3048\u308b\u3060\u3051\u3067\u3001\u5b9f\u88c5\u304b\u3089\u63d0\u6848\u307e\u3067\u3092\u4efb\u305b\u3089\u308c\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"confirm()\u3068window.confirm()\u306f\u9055\u3046\u3082\u306e\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u9055\u3044\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d6\u30e9\u30a6\u30b6\u4e0a\u306eJavaScript\u3067\u306f\u3001confirm()\u306f\u672c\u6765window.confirm()\u3068\u3044\u3046\u66f8\u304d\u65b9\u304c\u6b63\u5f0f\u306a\u5f62\u3067\u3059\u304c\u3001window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30bd\u30c3\u30c9\u306fwindow.\u3092\u7701\u7565\u3057\u3066\u547c\u3073\u51fa\u305b\u308b\u6c7a\u307e\u308a\u306b\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001confirm()\u3068window.confirm()\u306f\u5b8c\u5168\u306b\u540c\u3058\u52d5\u4f5c\u3092\u3059\u308b\u540c\u4e00\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002\u5b9f\u52d9\u306e\u30b3\u30fc\u30c9\u3067\u306f\u7701\u7565\u5f62\u304c\u4f7f\u308f\u308c\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"confirm()\u306e\u30dc\u30bf\u30f3\u306e\u6587\u8a00\uff08OK\/\u30ad\u30e3\u30f3\u30bb\u30eb\uff09\u3092\u300c\u306f\u3044\u300d\u300c\u3044\u3044\u3048\u300d\u306b\u5909\u66f4\u3067\u304d\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u3067\u304d\u307e\u305b\u3093\u3002confirm()\u304c\u8868\u793a\u3059\u308b\u30c0\u30a4\u30a2\u30ed\u30b0\u306f\u30d6\u30e9\u30a6\u30b6\u304c\u7ba1\u7406\u3059\u308b\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u90e8\u54c1\u3067\u3001JavaScript\u304b\u3089\u6e21\u305b\u308b\u306e\u306f\u672c\u6587\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u6587\u5b57\u5217\u306e\u307f\u3067\u3059\u3002\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u30fb\u8272\u30fb\u30c7\u30b6\u30a4\u30f3\u3092\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u3053\u306e\u8a18\u4e8b\u306e6\u7ae0\u3067\u7d39\u4ecb\u3057\u305f\u3088\u3046\u306b\u3001HTML\/CSS\u3067\u81ea\u4f5c\u3059\u308b\u304b\u3001&lt;dialog&gt;\u8981\u7d20\u3092\u4f7f\u3063\u3066\u30bc\u30ed\u304b\u3089\u5b9f\u88c5\u3057\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"confirm()\u306e\u623b\u308a\u5024\u306f\u3069\u3046\u4f7f\u3048\u3070\u3044\u3044\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"OK\u304c\u62bc\u3055\u308c\u308b\u3068true\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u308b\u3068false\u3068\u3044\u3046\u771f\u507d\u5024\u304c\u8fd4\u308a\u307e\u3059\u3002\u3053\u306e\u5024\u3092if\u6587\u306e\u6761\u4ef6\u5f0f\u306b\u4f7f\u3046\u3053\u3068\u3067\u300cOK\u306e\u3068\u304d\u3060\u3051\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u300d\u3068\u3044\u3046\u5206\u5c90\u304c\u66f8\u3051\u307e\u3059\u3002\u5909\u6570\u306b\u4e00\u5ea6\u53d7\u3051\u53d6\u3063\u3066\u304b\u3089\u5224\u5b9a\u3059\u308b\u65b9\u6cd5\u3068\u3001if\u6587\u306e\u6761\u4ef6\u5f0f\u306b\u76f4\u63a5confirm()\u3092\u66f8\u304f\u65b9\u6cd5\u306e\u3069\u3061\u3089\u3067\u3082\u540c\u3058\u7d50\u679c\u306b\u306a\u308a\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"confirm()\u3092\u4f7f\u3046\u3068\u30da\u30fc\u30b8\u306e\u52d5\u304d\u304c\u6b62\u307e\u308b\u306e\u306f\u672c\u5f53\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u672c\u5f53\u3067\u3059\u3002confirm()\u306f\u540c\u671f\u51e6\u7406\u3068\u547c\u3070\u308c\u308b\u65b9\u5f0f\u3067\u52d5\u4f5c\u3057\u3001\u547c\u3073\u51fa\u3055\u308c\u305f\u77ac\u9593\u306b\u305d\u306e\u884c\u3067JavaScript\u306e\u5b9f\u884c\u304c\u4e00\u6642\u505c\u6b62\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304cOK\u307e\u305f\u306f\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u62bc\u3059\u307e\u3067\u3001\u305d\u306e\u30da\u30fc\u30b8\u5185\u306e\u4ed6\u306e\u64cd\u4f5c\uff08\u30af\u30ea\u30c3\u30af\u3084\u30b9\u30af\u30ed\u30fc\u30eb\u306a\u3069\uff09\u3082\u57fa\u672c\u7684\u306b\u53d7\u3051\u4ed8\u3051\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u6b62\u307e\u308b\u306e\u306f\u305d\u306e\u30bf\u30d6\u30fb\u30da\u30fc\u30b8\u306e\u307f\u3067\u3001\u4ed6\u306e\u30bf\u30d6\u3084\u5225\u30a2\u30d7\u30ea\u306e\u52d5\u4f5c\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"confirm()\u306f\u975e\u63a8\u5968\uff08deprecated\uff09\u306a\u306e\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"JavaScript\u306e\u4ed5\u69d8\u66f8\u4e0a\u3001\u6b63\u5f0f\u306b\u975e\u63a8\u5968\u3068\u660e\u8a18\u3055\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u30c7\u30b6\u30a4\u30f3\u3092\u5909\u66f4\u3067\u304d\u306a\u3044\u30fb\u51e6\u7406\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u30fb\u9023\u7d9a\u547c\u3073\u51fa\u3057\u304c\u30d6\u30e9\u30a6\u30b6\u306b\u6291\u5236\u3055\u308c\u308b\u3068\u3044\u3063\u305f\u5236\u7d04\u304b\u3089\u3001\u5b9f\u52d9\u306e\u30d7\u30ed\u30c0\u30af\u30c8\u958b\u767a\u3067\u306f\u4f7f\u7528\u3092\u907f\u3051\u3001&lt;dialog&gt;\u8981\u7d20\u306a\u3069\u3078\u306e\u7f6e\u304d\u63db\u3048\u3092\u9078\u3076\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u793e\u5185\u30c4\u30fc\u30eb\u3084\u7c21\u6613\u7684\u306a\u78ba\u8a8d\u7528\u9014\u3067\u306f\u4eca\u3067\u3082\u554f\u984c\u306a\u304f\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u3082confirm()\u306f\u540c\u3058\u3088\u3046\u306b\u52d5\u304d\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u57fa\u672c\u7684\u306a\u623b\u308a\u5024\u306e\u4ed5\u7d44\u307f\uff08OK\u3067true\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3067false\uff09\u306f\u540c\u3058\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u898b\u305f\u76ee\u3084\u30dc\u30bf\u30f3\u306e\u914d\u7f6e\u306f\u30e2\u30d0\u30a4\u30eb\u30d6\u30e9\u30a6\u30b6\uff08Chrome for Android\u3084Mobile Safari\u306a\u3069\uff09\u3054\u3068\u306b\u30c7\u30b6\u30a4\u30f3\u304c\u7570\u306a\u308a\u3001PC\u7248\u3068\u306f\u8868\u793a\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u6319\u52d5\u3092\u78ba\u8a8d\u3059\u308b\u969b\u306f\u3001\u5bfe\u8c61\u3068\u3059\u308b\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u7aef\u672b\u3084\u30d6\u30e9\u30a6\u30b6\u3067\u5b9f\u6a5f\u30c6\u30b9\u30c8\u3092\u3057\u3066\u304a\u304f\u306e\u304c\u5b89\u5168\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"confirm()\u306e\u4ee3\u308f\u308a\u306b\u4f55\u3092\u4f7f\u3048\u3070\u3044\u3044\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u30c7\u30b6\u30a4\u30f3\u3092\u81ea\u7531\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u30016\u7ae0\u3067\u7d39\u4ecb\u3057\u305fHTML\u306e&lt;dialog&gt;\u8981\u7d20\u306e\u5229\u7528\u304c\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3067\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u6a5f\u80fd\u306a\u306e\u3067\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001CSS\u3067\u81ea\u7531\u306b\u88c5\u98fe\u3067\u304d\u3001\u30dc\u30bf\u30f3\u306e\u6587\u8a00\u3082\u81ea\u7531\u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u3088\u308a\u9ad8\u5ea6\u306a\u6f14\u51fa\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001SweetAlert2\u306a\u3069\u306e\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u691c\u8a0e\u3059\u308b\u958b\u767a\u73fe\u5834\u3082\u3042\u308a\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304cLP\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u76f4\u3057\u305f\u3044\u3068\u304d\u3001\u4f55\u3092\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": 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