{"id":47559,"date":"2026-09-15T17:09:48","date_gmt":"2026-09-15T08:09:48","guid":{"rendered":"https:\/\/genai-ai.co.jp\/ai-kanri\/?p=47559"},"modified":"2026-09-15T17:09:48","modified_gmt":"2026-09-15T08:09:48","slug":"js-try-catch-guide","status":"publish","type":"post","link":"https:\/\/genai-ai.co.jp\/ai-kanri\/blog\/js-try-catch-guide\/","title":{"rendered":"\u30102026\u5e749\u6708\u6700\u65b0\u3011JavaScript\u306etry...catch\u306e\u4f7f\u3044\u65b9\u3068\u4f8b\u5916\u51e6\u7406\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cthrow\u30fbfinally\u30fb\u975e\u540c\u671f\u30a8\u30e9\u30fc\u307e\u3067"},"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\/09\/thumb-js-try-catch-guide.jpg\" alt=\"\u30102026\u5e749\u6708\u6700\u65b0\u3011JavaScript\u306etry...catch\u306e\u4f7f\u3044\u65b9\u3068\u4f8b\u5916\u51e6\u7406\u5b8c\u5168\u30ac\u30a4\u30c9\uff5cthrow\u30fbfinally\u30fb\u975e\u540c\u671f\u30a8\u30e9\u30fc\u307e\u3067\" style=\"width:100%;height:auto;border-radius:12px;display:block;\">\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u300cJavaScript\u3067try...catch\u3063\u3066\u3069\u3046\u66f8\u3051\u3070\u3044\u3044\u306e\uff1f\u300d\u300cthrow\u3068Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u95a2\u4fc2\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u300d\u2014\u2014\u3053\u306e\u8a18\u4e8b\u306b\u305f\u3069\u308a\u7740\u3044\u305f\u3042\u306a\u305f\u306f\u3001\u304a\u305d\u3089\u304f\u305d\u3093\u306a\u7591\u554f\u3092\u62b1\u3048\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">try...catch\u306f\u3001JavaScript\u3067<strong>\u300c\u51e6\u7406\u4e2d\u306b\u4e88\u671f\u3057\u306a\u3044\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u3066\u3082\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u5168\u4f53\u3092\u6b62\u3081\u305a\u306b\u5bfe\u51e6\u3059\u308b\u300d<\/strong>\u305f\u3081\u306e\u69cb\u6587\u3067\u3059\u3002\u30d5\u30a9\u30fc\u30e0\u5165\u529b\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3001API\u901a\u4fe1\u3001\u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u2014\u2014\u30a8\u30e9\u30fc\u304c\u8d77\u3053\u308a\u3046\u308b\u51e6\u7406\u306b\u306f\u5fc5\u305a\u3068\u8a00\u3063\u3066\u3044\u3044\u307b\u3069\u767b\u5834\u3057\u307e\u3059\u3002\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001<strong>finally\u306e\u5b9f\u884c\u30bf\u30a4\u30df\u30f3\u30b0<\/strong>\u3084<strong>Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e<\/strong>\u3001<strong>\u975e\u540c\u671f\u51e6\u7406\u3067\u306e\u4f8b\u5916\u51e6\u7406<\/strong>\u307e\u3067\u6b63\u78ba\u306b\u7406\u89e3\u3057\u3066\u3044\u308b\u4eba\u306f\u591a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001try...catch\u306e\u57fa\u672c\u69cb\u6587\u304b\u3089\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af\u307e\u3067\u3092\u5b9f\u4f8b\u4ed8\u304d\u3067\u6574\u7406\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u5f8c\u534a\u3067\u306f\u3001<strong>\u5f0a\u793e\uff08\u682a\u5f0f\u4f1a\u793eGENAI\uff09\u304cClaude Code\u3068\u3044\u3046 AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3092\u4f7f\u3063\u3066\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u30b3\u30fc\u30c9\u3092\u3069\u3046\u6271\u3063\u3066\u3044\u308b\u304b<\/strong>\u3068\u3044\u3046\u30012026\u5e74\u6642\u70b9\u306e\u3082\u3046\u3072\u3068\u3064\u306e\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3082\u7d39\u4ecb\u3057\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\">try...catch\u306f\u300c\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u305f\u3068\u304d\u306b\u3069\u3046\u632f\u308b\u821e\u3046\u304b\u300d\u3092\u8a2d\u8a08\u3059\u308b\u69cb\u6587\u3067\u3059\u3002\u4eca\u65e5\u306f\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\u3054\u3068\u306e\u5bfe\u51e6\u6cd5\u307e\u3067\u542b\u3081\u3066\u3001\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u5f62\u306b\u6574\u7406\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/div>\n<\/div>\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\">\u79c1\u304c\u6700\u521d\u306b\u3064\u307e\u305a\u3044\u305f\u306e\u306f\u300ccatch\u3067\u6355\u307e\u3048\u305f\u30a8\u30e9\u30fc\u3092\u3001\u7d50\u5c40\u3069\u3046\u51e6\u7406\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u300d\u3068\u3044\u3046\u90e8\u5206\u3067\u3057\u305f\u3002\u5f8c\u534a\u3067\u306f\u3001\u305d\u3082\u305d\u3082\u3053\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u4f5c\u696d\u81ea\u4f53\u3092AI\u306b\u4efb\u305b\u308b\u3068\u3044\u3046\u8a71\u3082\u3057\u307e\u3059\u306e\u3067\u3001\u6700\u5f8c\u307e\u3067\u8aad\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\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>try...catch\u306e\u57fa\u672c\u69cb\u6587<\/strong>\u3068\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u3068\u304d\u306e\u51e6\u7406\u306e\u6d41\u308c<\/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>throw\u6587<\/strong>\u3067\u610f\u56f3\u7684\u306b\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3055\u305b\u308b\u65b9\u6cd5\u3068\u4f7f\u3044\u3069\u3053\u308d<\/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>Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e<\/strong>\uff08TypeError\u30fbReferenceError\u306a\u3069\uff09\u3068\u898b\u5206\u3051\u65b9<\/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>finally\u6587<\/strong>\u304c\u300c\u5fc5\u305a\u5b9f\u884c\u3055\u308c\u308b\u300d\u4ed5\u7d44\u307f\u3068\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3<\/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>async\/await<\/strong>\u3092\u4f7f\u3063\u305f\u975e\u540c\u671f\u51e6\u7406\u3067\u306e\u4f8b\u5916\u51e6\u7406\u306e\u66f8\u304d\u65b9<\/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>AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u304b\u305b\u308b<\/strong>\u3068\u3044\u3046\u3001\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u3082\u958b\u304b\u308c\u305f\u9078\u629e\u80a2<\/span><\/div>\n\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">BASIC SYNTAX<\/span>\n  <span class=\"section-title\" style=\"display:block;\">try...catch\u3068\u306f\u4f55\u304b\u30fb\u57fa\u672c\u69cb\u6587\u3092\u7406\u89e3\u3059\u308b<\/span>\n  <span class=\"section-desc\">\u300c\u30a8\u30e9\u30fc\u3067\u51e6\u7406\u304c\u6b62\u307e\u308b\u300d\u3092\u9632\u3050\u4ed5\u7d44\u307f<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">try...catch\u306f\u3001<strong>\u300c\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u51e6\u7406\u300d\u3092try\u30d6\u30ed\u30c3\u30af\u306b\u66f8\u304d\u3001\u5b9f\u969b\u306b\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u305f\u3068\u304d\u306e\u5bfe\u51e6\u3092catch\u30d6\u30ed\u30c3\u30af\u306b\u66f8\u304f<\/strong>\u69cb\u6587\u3067\u3059\u3002\u307e\u305a\u306f\u6700\u5c0f\u9650\u306e\u5f62\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">JSON.parse\u5931\u6557\u6642\u306etry...catch<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>try {\n  const result = JSON.parse('{invalid json}');\n  console.log(result);\n} catch (error) {\n  console.log('\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f:', error.message);\n}\n\n\/\/ \u51fa\u529b: \u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f: Unexpected token i in JSON<\/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>try...catch\u6587<\/strong>\uff1aJavaScript\u3067\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u884c\u3046\u305f\u3081\u306e\u69cb\u6587\u3002\u300ctry\u300d\u30d6\u30ed\u30c3\u30af\u5185\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u305d\u306e\u5834\u3067try\u30d6\u30ed\u30c3\u30af\u306e\u6b8b\u308a\u306e\u51e6\u7406\u306f\u4e2d\u65ad\u3055\u308c\u3001\u5373\u5ea7\u306b\u300ccatch\u300d\u30d6\u30ed\u30c3\u30af\u306b\u51e6\u7406\u304c\u79fb\u308b\u3002\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u306a\u3051\u308c\u3070catch\u30d6\u30ed\u30c3\u30af\u306f\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3057try...catch\u3092\u4f7f\u308f\u305a\u306b\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001<code>JSON.parse<\/code>\u306e\u6642\u70b9\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3001<strong>\u305d\u308c\u4ee5\u964d\u306eJavaScript\u306e\u51e6\u7406\u304c\u5168\u3066\u6b62\u307e\u3063\u3066\u3057\u307e\u3044\u307e\u3059<\/strong>\u3002try...catch\u3067\u56f2\u3080\u3053\u3068\u3067\u3001\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u3066\u3082\u51e6\u7406\u3092\u7d99\u7d9a\u3055\u305b\u305f\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u5206\u304b\u308a\u3084\u3059\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u305f\u308a\u3067\u304d\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;\">try...catch\u306f\u300c\u8d77\u3053\u308a\u3046\u308b\u30a8\u30e9\u30fc\u300d\u306b\u3060\u3051\u4f7f\u3046<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u3059\u3079\u3066\u306e\u30b3\u30fc\u30c9\u3092try...catch\u3067\u56f2\u3080\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5916\u90e8API\u3068\u306e\u901a\u4fe1\u3001\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306e\u89e3\u6790\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u66f8\u304d\u306a\u3069\u3001<strong>\u300c\u5931\u6557\u3059\u308b\u53ef\u80fd\u6027\u304c\u73fe\u5b9f\u7684\u306b\u3042\u308b\u51e6\u7406\u300d<\/strong>\u306b\u7d5e\u3063\u3066\u4f7f\u3046\u306e\u304c\u57fa\u672c\u3067\u3059\u3002\u4f7f\u3044\u3059\u304e\u308b\u3068\u3001\u672c\u6765\u6c17\u3065\u304f\u3079\u304d\u30d0\u30b0\u307e\u3067\u63e1\u308a\u3064\u3076\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1-1. catch\u306e\u5f15\u6570\uff08error\uff09\u304b\u3089\u60c5\u5831\u3092\u53d6\u308a\u51fa\u3059<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">catch\u30d6\u30ed\u30c3\u30af\u306e\u5f15\u6570\u306b\u306f\u3001\u767a\u751f\u3057\u305f\u30a8\u30e9\u30fc\u306e\u60c5\u5831\u304c\u5165\u3063\u305f<strong>Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong>\u304c\u6e21\u3055\u308c\u307e\u3059\u3002\u3088\u304f\u4f7f\u3046\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u4ee5\u4e0b\u306e2\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">error.name \u3068 error.message<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>try {\n  null.foo();  \/\/ null \u306b\u306ffoo\u3068\u3044\u3046\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u306a\u3044\n} catch (error) {\n  console.log(error.name);    \/\/ 'TypeError'\n  console.log(error.message); \/\/ 'Cannot read properties of null...'\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>Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong>\uff1aJavaScript\u3067\u30a8\u30e9\u30fc\u60c5\u5831\u3092\u8868\u73fe\u3059\u308b\u305f\u3081\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002<code>name<\/code>\uff08\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\uff09\u3001<code>message<\/code>\uff08\u30a8\u30e9\u30fc\u5185\u5bb9\u306e\u8aac\u660e\u6587\uff09\u3001<code>stack<\/code>\uff08\u30a8\u30e9\u30fc\u767a\u751f\u7b87\u6240\u306e\u5c65\u6b74\uff09\u3068\u3044\u3063\u305f\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6301\u3061\u307e\u3059\u3002catch\u30d6\u30ed\u30c3\u30af\u306e\u5f15\u6570\u3068\u3057\u3066\u81ea\u52d5\u7684\u306b\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">THROW STATEMENT<\/span>\n  <span class=\"section-title\" style=\"display:block;\">throw\u3067\u610f\u56f3\u7684\u306b\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3055\u305b\u308b<\/span>\n  <span class=\"section-desc\">\u300c\u3053\u308c\u306f\u304a\u304b\u3057\u3044\u300d\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u4f1d\u3048\u308b\u65b9\u6cd5<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">throw\u6587\u3092\u4f7f\u3046\u3068\u3001<strong>\u81ea\u5206\u306e\u66f8\u3044\u305f\u30b3\u30fc\u30c9\u306e\u4e2d\u3067\u300c\u3053\u308c\u306f\u7570\u5e38\u306a\u72b6\u614b\u3060\u300d\u3068\u5224\u65ad\u3057\u305f\u6642\u70b9\u3067\u3001\u610f\u56f3\u7684\u306b\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3055\u305b\u308b<\/strong>\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">throw\u3067\u72ec\u81ea\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u767a\u751f\u3055\u305b\u308b<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>function divide(a, b) {\n  if (b === 0) {\n    throw new Error('0\u3067\u5272\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093');\n  }\n  return a \/ b;\n}\n\ntry {\n  console.log(divide(10, 0));\n} catch (error) {\n  console.log(error.message); \/\/ 0\u3067\u5272\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\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>throw\u6587<\/strong>\uff1a\u4efb\u610f\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u610f\u56f3\u7684\u306b\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3055\u305b\u308b\u305f\u3081\u306e\u6587\u3002<code>throw new Error('\u30e1\u30c3\u30bb\u30fc\u30b8')<\/code>\u3068\u3044\u3046\u5f62\u3067\u66f8\u304f\u306e\u304c\u4e00\u822c\u7684\u3067\u3001throw\u3055\u308c\u305f\u30a8\u30e9\u30fc\u306f\u3001\u6700\u3082\u8fd1\u3044\u5916\u5074\u306etry...catch\u306ecatch\u30d6\u30ed\u30c3\u30af\u306b\u6e21\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">throw\u304c\u4fbf\u5229\u306a\u306e\u306f\u3001<strong>\u300cJavaScript\u81ea\u4f53\u306f\u30a8\u30e9\u30fc\u3060\u3068\u5224\u65ad\u3057\u306a\u3044\u304c\u3001\u696d\u52d9\u30ed\u30b8\u30c3\u30af\u4e0a\u306f\u660e\u3089\u304b\u306b\u304a\u304b\u3057\u3044\u300d<\/strong>\u30b1\u30fc\u30b9\u3092\u6271\u3048\u308b\u3053\u3068\u3067\u3059\u3002\u4f8b\u3048\u3070\u300c\u5272\u308a\u7b97\u3092\u30bc\u30ed\u3067\u884c\u3046\u300d\u3053\u3068\u81ea\u4f53\u306fJavaScript\u306e\u6587\u6cd5\u30a8\u30e9\u30fc\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u696d\u52d9\u4e0a\u306f\u7570\u5e38\u306a\u72b6\u614b\u3068\u3057\u3066\u6271\u3044\u305f\u3044\u3001\u3068\u3044\u3063\u305f\u5834\u9762\u3067\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2-1. Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e\u3092\u898b\u5206\u3051\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">JavaScript\u306b\u306f\u3001\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3054\u3068\u306b\u3042\u3089\u304b\u3058\u3081\u7528\u610f\u3055\u308c\u305f<strong>\u7d44\u307f\u8fbc\u307fError\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong>\u304c\u8907\u6570\u3042\u308a\u307e\u3059\u3002catch\u3057\u305f\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\u3092\u898b\u5206\u3051\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u7684\u78ba\u306a\u5bfe\u51e6\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<table>\n<thead><tr><th>\u30a8\u30e9\u30fc\u306e\u7a2e\u985e<\/th><th>\u4e3b\u306a\u767a\u751f\u539f\u56e0<\/th><th>\u5177\u4f53\u4f8b<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>TypeError<\/td><td>\u5024\u306e\u578b\u304c\u671f\u5f85\u3068\u7570\u306a\u308b\u64cd\u4f5c\u3092\u3057\u305f<\/td><td>null\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f<\/td><\/tr>\n<tr><td>ReferenceError<\/td><td>\u5b58\u5728\u3057\u306a\u3044\u5909\u6570\u3092\u53c2\u7167\u3057\u305f<\/td><td>\u5b9a\u7fa9\u3057\u3066\u3044\u306a\u3044\u5909\u6570\u3092console.log\u3057\u305f<\/td><\/tr>\n<tr><td>SyntaxError<\/td><td>\u30b3\u30fc\u30c9\u306e\u6587\u6cd5\u304c\u8aa4\u3063\u3066\u3044\u308b<\/td><td>JSON.parse\u306b\u4e0d\u6b63\u306a\u6587\u5b57\u5217\u3092\u6e21\u3057\u305f<\/td><\/tr>\n<tr><td>RangeError<\/td><td>\u5024\u304c\u8a31\u5bb9\u7bc4\u56f2\u3092\u8d85\u3048\u3066\u3044\u308b<\/td><td>\u914d\u5217\u306e\u9577\u3055\u306b\u8ca0\u306e\u6570\u3092\u6307\u5b9a\u3057\u305f<\/td><\/tr>\n<tr><td>Error<\/td><td>\u4e0a\u8a18\u306b\u5f53\u3066\u306f\u307e\u3089\u306a\u3044\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc<\/td><td>throw new Error()\u3067\u72ec\u81ea\u306b\u767a\u751f\u3055\u305b\u305f\u3082\u306e<\/td><\/tr>\n<\/tbody>\n<\/table>\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>TypeError \/ ReferenceError<\/strong>\uff1a\u3044\u305a\u308c\u3082JavaScript\u306e\u7d44\u307f\u8fbc\u307f\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\u3002TypeError\u306f\u300c\u5024\u306e\u578b\u306b\u5bfe\u3057\u3066\u4e0d\u6b63\u306a\u64cd\u4f5c\u3092\u3057\u305f\u300d\u5834\u5408\uff08\u4f8b: null\u306b\u5bfe\u3057\u3066\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3093\u3060\uff09\u306b\u3001ReferenceError\u306f\u300c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u5909\u6570\u3092\u53c2\u7167\u3057\u305f\u300d\u5834\u5408\u306b\u81ea\u52d5\u7684\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\u304c\u5206\u304b\u308c\u3070\u3001\u539f\u56e0\u306e\u898b\u5f53\u304c\u3064\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\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;\">\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3060\u3051\u3067\u5224\u65ad\u3057\u306a\u3044<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6587\u8a00\u306fJavaScript\u306e\u5b9f\u884c\u74b0\u5883\uff08\u30d6\u30e9\u30a6\u30b6\u3084Node.js\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\uff09\u306b\u3088\u3063\u3066\u5fae\u5999\u306b\u7570\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u539f\u56e0\u3092\u6b63\u78ba\u306b\u7279\u5b9a\u3059\u308b\u306b\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3060\u3051\u3067\u306a\u304f<code>error.name<\/code>\uff08\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\uff09\u3068\u3001\u6b21\u7ae0\u3067\u7d39\u4ecb\u3059\u308b<code>error.stack<\/code>\uff08\u767a\u751f\u7b87\u6240\u306e\u5c65\u6b74\uff09\u3092\u5408\u308f\u305b\u3066\u78ba\u8a8d\u3059\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">FINALLY BLOCK<\/span>\n  <span class=\"section-title\" style=\"display:block;\">finally\u6587\u3067\u300c\u5fc5\u305a\u5b9f\u884c\u3055\u308c\u308b\u51e6\u7406\u300d\u3092\u66f8\u304f<\/span>\n  <span class=\"section-desc\">\u30a8\u30e9\u30fc\u306e\u6709\u7121\u306b\u95a2\u308f\u3089\u305a\u5f8c\u7247\u4ed8\u3051\u3092\u3059\u308b\u65b9\u6cd5<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">try...catch\u306b\u306f\u3001<strong>finally<\/strong>\u3068\u3044\u3046\u3082\u30461\u3064\u306e\u30d6\u30ed\u30c3\u30af\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002finally\u30d6\u30ed\u30c3\u30af\u306f\u3001<strong>\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u3066\u3082\u8d77\u304d\u306a\u304f\u3066\u3082\u3001\u5fc5\u305a\u6700\u5f8c\u306b\u5b9f\u884c\u3055\u308c\u308b<\/strong>\u3068\u3044\u3046\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">finally\u306f\u6210\u529f\u30fb\u5931\u6557\u3069\u3061\u3089\u3067\u3082\u5b9f\u884c\u3055\u308c\u308b<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>function processData(data) {\n  console.log('\u51e6\u7406\u958b\u59cb');\n  try {\n    if (!data) {\n      throw new Error('\u30c7\u30fc\u30bf\u304c\u7a7a\u3067\u3059');\n    }\n    console.log('\u51e6\u7406\u6210\u529f:', data);\n  } catch (error) {\n    console.log('\u30a8\u30e9\u30fc:', error.message);\n  } finally {\n    console.log('\u5f8c\u7247\u4ed8\u3051\u51e6\u7406\u3092\u5b9f\u884c');\n  }\n}\n\nprocessData(null);\n\/\/ \u51fa\u529b:\n\/\/ \u51e6\u7406\u958b\u59cb\n\/\/ \u30a8\u30e9\u30fc: \u30c7\u30fc\u30bf\u304c\u7a7a\u3067\u3059\n\/\/ \u5f8c\u7247\u4ed8\u3051\u51e6\u7406\u3092\u5b9f\u884c<\/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>finally\u6587<\/strong>\uff1atry...catch\u306e\u6700\u5f8c\u306b\u4ed8\u3051\u52a0\u3048\u3089\u308c\u308b\u30d6\u30ed\u30c3\u30af\u3067\u3001try\u304c\u6210\u529f\u3057\u305f\u5834\u5408\u30fbcatch\u3067\u30a8\u30e9\u30fc\u3092\u6355\u307e\u3048\u305f\u5834\u5408\u306e\u3069\u3061\u3089\u3067\u3082<strong>\u5fc5\u305a\u5b9f\u884c\u3055\u308c\u308b<\/strong>\u51e6\u7406\u3092\u66f8\u304f\u5834\u6240\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u30af\u30ed\u30fc\u30ba\u51e6\u7406\u3001\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u8868\u793a\u306e\u89e3\u9664\u306a\u3069\u3001\u300c\u5f8c\u7247\u4ed8\u3051\u300d\u304c\u5fc5\u8981\u306a\u51e6\u7406\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">finally\u304c\u7279\u306b\u91cd\u8981\u306b\u306a\u308b\u306e\u306f\u3001<strong>\u300c\u30a8\u30e9\u30fc\u306e\u6709\u7121\u306b\u95a2\u308f\u3089\u305a\u7d76\u5bfe\u306b\u3084\u3063\u3066\u304a\u304d\u305f\u3044\u51e6\u7406\u300d<\/strong>\u304c\u3042\u308b\u5834\u5408\u3067\u3059\u3002\u4f8b\u3048\u3070\u300c\u901a\u4fe1\u4e2d\u306f\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u753b\u9762\u3092\u51fa\u3059\u300d\u3068\u3044\u3046\u5b9f\u88c5\u3067\u306f\u3001\u901a\u4fe1\u304c\u6210\u529f\u3057\u3066\u3082\u5931\u6557\u3057\u3066\u3082\u3001\u6700\u5f8c\u306b\u5fc5\u305a\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u753b\u9762\u3092\u6d88\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u300c\u5fc5\u305a\u6d88\u3059\u300d\u3092finally\u306b\u66f8\u3051\u3070\u3001\u66f8\u304d\u6f0f\u308c\u3092\u9632\u3052\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">try\u30fbcatch\u30fbfinally\u306e\u5b9f\u884c\u9806\u5e8f\u3092\u56f3\u306b\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u300c\u6210\u529f\u6642\u300d\u3082\u300c\u5931\u6557\u6642\u300d\u3082\u3001\u6700\u5f8c\u306f\u5fc5\u305afinally\u3092\u901a\u904e\u3059\u308b\u6d41\u308c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"g-flow-row\" style=\"margin:24px 0;\">\n  <div class=\"g-flow-item\"><strong>try\u30d6\u30ed\u30c3\u30af<br>\u5b9f\u884c<\/strong><br><span style=\"font-size:12px;\">\u30a8\u30e9\u30fc\u304c<br>\u8d77\u304d\u308b\u304b\u78ba\u8a8d<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>\u6210\u529f\u2192\u305d\u306e\u307e\u307e<br>\uff0f\u5931\u6557\u2192catch\u3078<\/strong><br><span style=\"font-size:12px;\">\u5206\u5c90\u304c\u767a\u751f<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>catch\u3067<br>\u30a8\u30e9\u30fc\u51e6\u7406<\/strong><br><span style=\"font-size:12px;\">\uff08\u5931\u6557\u6642\u306e\u307f\uff09<\/span><\/div>\n  <div class=\"g-flow-arrow\">&#8594;<\/div>\n  <div class=\"g-flow-item\"><strong>finally<br>\u5fc5\u305a\u5b9f\u884c<\/strong><br><span style=\"font-size:12px;\">\u6210\u529f\u30fb\u5931\u6557<br>\u3069\u3061\u3089\u3082\u901a\u904e<\/span><\/div>\n<\/div>\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\">\u300cfinally\u3060\u3051\u306f\u7d76\u5bfe\u306b\u901a\u308b\u300d\u3068\u899a\u3048\u3066\u304a\u304f\u3068\u3001\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u89e3\u9664\u3084\u30ea\u30bd\u30fc\u30b9\u306e\u89e3\u653e\u6f0f\u308c\u3092\u9632\u3052\u307e\u3059\u3002\u79c1\u3082\u904e\u53bb\u306b\u3001finally\u3092\u4f7f\u308f\u305a\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u304c\u6d88\u3048\u306a\u3044\u30d0\u30b0\u3092\u51fa\u3057\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/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;\">finally\u306e\u4e2d\u3067return\u3059\u308b\u306e\u306f\u907f\u3051\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">finally\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u3067return\u3092\u66f8\u304f\u3068\u3001try\u3084catch\u306e\u4e2d\u306ereturn\u30fbthrow\u306e\u7d50\u679c\u304c\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3057\u307e\u3044\u3001\u975e\u5e38\u306b\u5206\u304b\u308a\u306b\u304f\u3044\u30d0\u30b0\u306e\u539f\u56e0\u306b\u306a\u308a\u307e\u3059\u3002finally\u306f\u300c\u5f8c\u7247\u4ed8\u3051\u300d\u306b\u5fb9\u3057\u3001\u5024\u3092\u8fd4\u3059\u51e6\u7406\u306f\u66f8\u304b\u306a\u3044\u306e\u304c\u5b89\u5168\u306a\u4f7f\u3044\u65b9\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">3-1. \u8907\u6570\u306e\u7a2e\u985e\u306e\u30a8\u30e9\u30fc\u3092\u6761\u4ef6\u5206\u5c90\u3067\u51e6\u7406\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3064\u306ecatch\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u3067\u3001<code>instanceof<\/code>\u3092\u4f7f\u3063\u3066\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\u3054\u3068\u306b\u51e6\u7406\u3092\u5206\u3051\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">instanceof\u3067\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\u3054\u3068\u306b\u5206\u5c90<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>try {\n  riskyOperation();\n} catch (error) {\n  if (error instanceof TypeError) {\n    console.log('\u578b\u306e\u30a8\u30e9\u30fc\u3067\u3059:', error.message);\n  } else if (error instanceof RangeError) {\n    console.log('\u7bc4\u56f2\u306e\u30a8\u30e9\u30fc\u3067\u3059:', error.message);\n  } else {\n    console.log('\u305d\u306e\u4ed6\u306e\u30a8\u30e9\u30fc:', error.message);\n  }\n}<\/code><\/pre>\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">ERROR DETAILS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u30a8\u30e9\u30fc\u60c5\u5831\u3092\u6d3b\u7528\u3059\u308b\u30fb\u95a2\u6570\u3068\u3057\u3066\u5171\u901a\u5316\u3059\u308b<\/span>\n  <span class=\"section-desc\">stack\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u3001\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u8a2d\u8a08<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306f\u3001<code>message<\/code>\u3084<code>name<\/code>\u4ee5\u5916\u306b<strong>stack<\/strong>\u3068\u3044\u3046\u30d7\u30ed\u30d1\u30c6\u30a3\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u300c\u305d\u306e\u30a8\u30e9\u30fc\u304c\u3001\u3069\u306e\u95a2\u6570\u306e\u3069\u306e\u884c\u304b\u3089\u767a\u751f\u3057\u305f\u304b\u300d\u3068\u3044\u3046\u5c65\u6b74\uff08\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\uff09\u3092\u6587\u5b57\u5217\u3067\u4fdd\u6301\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">stack\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u30a8\u30e9\u30fc\u306e\u767a\u751f\u7d4c\u8def\u3092\u8ffd\u8de1<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>function level3() { throw new Error('\u554f\u984c\u767a\u751f'); }\nfunction level2() { level3(); }\nfunction level1() { level2(); }\n\ntry {\n  level1();\n} catch (error) {\n  console.log(error.stack);\n  \/\/ Error: \u554f\u984c\u767a\u751f\n  \/\/   at level3 (...)\n  \/\/   at level2 (...)\n  \/\/   at level1 (...)\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>\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9 (stack)<\/strong>\uff1a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u307e\u3067\u306b\u3001\u3069\u306e\u95a2\u6570\u304c\u3069\u306e\u9806\u756a\u3067\u547c\u3073\u51fa\u3055\u308c\u305f\u304b\u3092\u8a18\u9332\u3057\u305f\u5c65\u6b74\u306e\u3053\u3068\u3002error.stack\u3092\u898b\u308c\u3070\u300c\u6700\u7d42\u7684\u306b\u3069\u306e\u95a2\u6570\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u304b\u300d\u3060\u3051\u3067\u306a\u304f\u300c\u305d\u3053\u306b\u81f3\u308b\u307e\u3067\u306e\u547c\u3073\u51fa\u3057\u7d4c\u8def\u300d\u307e\u3067\u4e00\u76ee\u3067\u5206\u304b\u308b\u305f\u3081\u3001\u539f\u56e0\u8abf\u67fb\uff08\u30c7\u30d0\u30c3\u30b0\uff09\u306b\u975e\u5e38\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u52d9\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u540c\u3058\u3088\u3046\u306a\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u4f55\u5ea6\u3082\u66f8\u304f\u306e\u3092\u907f\u3051\u308b\u305f\u3081\u3001<strong>\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3092\u95a2\u6570\u3068\u3057\u3066\u5171\u901a\u5316<\/strong>\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u5171\u901a\u95a2\u6570\u306b\u5207\u308a\u51fa\u3059<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>function handleError(error, context = '') {\n  console.error(`[${context}] ${error.name}: ${error.message}`);\n  \/\/ \u3053\u3053\u3067\u30ed\u30b0\u9001\u4fe1\u3084\u30e6\u30fc\u30b6\u30fc\u901a\u77e5\u51e6\u7406\u3092\u307e\u3068\u3081\u3066\u884c\u3046\n}\n\ntry {\n  JSON.parse('invalid');\n} catch (error) {\n  handleError(error, '\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f');\n}<\/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;\">\u30a8\u30e9\u30fc\u51e6\u7406\u306f\u300c\u3069\u3053\u3067\u300d\u300c\u4f55\u304c\u300d\u8d77\u304d\u305f\u304b\u3092\u30bb\u30c3\u30c8\u3067\u6b8b\u3059<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3060\u3051\u3092\u8868\u793a\u30fb\u8a18\u9332\u3059\u308b\u3068\u3001\u5f8c\u304b\u3089\u898b\u8fd4\u3057\u305f\u3068\u304d\u306b\u300c\u3069\u306e\u51e6\u7406\u3067\u8d77\u304d\u305f\u30a8\u30e9\u30fc\u304b\u300d\u304c\u5206\u304b\u3089\u306a\u304f\u306a\u308a\u304c\u3061\u3067\u3059\u3002\u4e0a\u8a18\u306e\u3088\u3046\u306b<strong>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\uff08\u3069\u306e\u51e6\u7406\u304b\uff09\u3092\u4e00\u7dd2\u306b\u8a18\u9332\u3059\u308b<\/strong>\u7656\u3092\u3064\u3051\u308b\u3068\u3001\u5f8c\u306e\u539f\u56e0\u8abf\u67fb\u304c\u683c\u6bb5\u306b\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">ASYNC ERROR HANDLING<\/span>\n  <span class=\"section-title\" style=\"display:block;\">async\/await\u3067\u306e\u4f8b\u5916\u51e6\u7406<\/span>\n  <span class=\"section-desc\">\u975e\u540c\u671f\u51e6\u7406\u7279\u6709\u306e\u300c\u30a8\u30e9\u30fc\u304c\u6355\u307e\u3048\u3089\u308c\u306a\u3044\u300d\u554f\u984c\u3092\u907f\u3051\u308b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">API\u901a\u4fe1\u306a\u3069<strong>\u975e\u540c\u671f\u51e6\u7406<\/strong>\u3067\u3082\u3001async\/await\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067try...catch\u304c\u4f7f\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u66f8\u304d\u65b9\u3092\u8aa4\u308b\u3068<strong>\u30a8\u30e9\u30fc\u304ccatch\u3055\u308c\u305a\u306b\u3059\u308a\u629c\u3051\u3066\u3057\u307e\u3046<\/strong>\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">async\u95a2\u6570\u5185\u3067\u306etry...catch<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>async function fetchUserData(userId) {\n  try {\n    const response = await fetch(`\/api\/users\/${userId}`);\n    if (!response.ok) {\n      throw new Error(`API\u30a8\u30e9\u30fc: ${response.status}`);\n    }\n    const data = await response.json();\n    return data;\n  } catch (error) {\n    console.log('\u30e6\u30fc\u30b6\u30fc\u53d6\u5f97\u306b\u5931\u6557:', error.message);\n    return null;\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>async \/ await<\/strong>\uff1a\u975e\u540c\u671f\u51e6\u7406\uff08\u7d50\u679c\u304c\u8fd4\u3063\u3066\u304f\u308b\u307e\u3067\u6642\u9593\u304c\u304b\u304b\u308b\u51e6\u7406\uff09\u3092\u3001\u3042\u305f\u304b\u3082\u540c\u671f\u51e6\u7406\u306e\u3088\u3046\u306b\u4e0a\u304b\u3089\u9806\u756a\u306b\u66f8\u3051\u308b\u3088\u3046\u306b\u3059\u308bJavaScript\u306e\u69cb\u6587\u3002<code>await<\/code>\u3092\u4ed8\u3051\u305f\u51e6\u7406\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u901a\u5e38\u306e\u540c\u671f\u51e6\u7406\u3068\u540c\u3058\u3088\u3046\u306b<code>catch<\/code>\u30d6\u30ed\u30c3\u30af\u3067\u30a8\u30e9\u30fc\u3092\u6355\u307e\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\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;\">.then()\u306e\u4e2d\u3067throw\u3057\u3066\u3082try...catch\u3067\u306f\u6355\u307e\u3048\u3089\u308c\u306a\u3044\u3053\u3068\u304c\u3042\u308b<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">async\/await\u3092\u4f7f\u308f\u305a<code>.then()<\/code>\u3092\u4f7f\u3063\u305f\u66f8\u304d\u65b9\u306e\u5834\u5408\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u95a2\u6570\u306e\u5916\u5074\u306b\u3042\u308btry...catch\u3067\u306f\u30a8\u30e9\u30fc\u3092\u6355\u307e\u3048\u3089\u308c\u307e\u305b\u3093\u3002\u975e\u540c\u671f\u51e6\u7406\u306e\u30a8\u30e9\u30fc\u306f<code>.catch()<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u304b\u3001async\/await\u306b\u7d71\u4e00\u3057\u3066\u66f8\u304f\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">5-1. \u8907\u6570\u306e\u975e\u540c\u671f\u51e6\u7406\u3092\u307e\u3068\u3081\u3066\u30a8\u30e9\u30fc\u51e6\u7406\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Promise.all\u306e\u3088\u3046\u306b\u8907\u6570\u306e\u975e\u540c\u671f\u51e6\u7406\u3092\u540c\u6642\u306b\u5b9f\u884c\u3059\u308b\u5834\u5408\u3082\u3001\u5916\u5074\u3092try...catch\u3067\u56f2\u3081\u3070\u3001\u3044\u305a\u308c\u304b1\u3064\u3067\u3082\u5931\u6557\u3057\u305f\u6642\u70b9\u3067\u307e\u3068\u3081\u3066\u6355\u307e\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">Promise.all + try...catch<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>async function fetchAll() {\n  try {\n    const [users, orders] = await Promise.all([\n      fetch('\/api\/users').then(r => r.json()),\n      fetch('\/api\/orders').then(r => r.json()),\n    ]);\n    return { users, orders };\n  } catch (error) {\n    console.log('\u3044\u305a\u308c\u304b\u306e\u53d6\u5f97\u306b\u5931\u6557:', error.message);\n    return null;\n  }\n}<\/code><\/pre>\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">CAUTIONS<\/span>\n  <span class=\"section-title\" style=\"display:block;\">try...catch\u3092\u4f7f\u3046\u4e0a\u3067\u306e\u6ce8\u610f\u70b9<\/span>\n  <span class=\"section-desc\">continue\/break\u304c\u4f7f\u3048\u306a\u3044\u30fb\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">try...catch\u306b\u306f\u3001\u77e5\u3089\u306a\u3044\u3068\u30cf\u30de\u308a\u3084\u3059\u3044<strong>2\u3064\u306e\u843d\u3068\u3057\u7a74<\/strong>\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6-1. \u30eb\u30fc\u30d7\u306e\u4e2d\u3067continue\/break\u3092\u4f7f\u3046\u969b\u306e\u66f8\u304d\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">try...catch\u30d6\u30ed\u30c3\u30af\u306e\u5916\u306b\u3042\u308b\u30eb\u30fc\u30d7\u306b\u5bfe\u3057\u3066\u3001catch\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u304b\u3089continue\u3084break\u3092\u4f7f\u3046\u3053\u3068\u81ea\u4f53\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001<strong>try\u30d6\u30ed\u30c3\u30af\u306e\u5916\u306b\u3042\u308b\u30eb\u30fc\u30d7\u5909\u6570\u306e\u30b9\u30b3\u30fc\u30d7<\/strong>\u306a\u3069\u3001\u66f8\u304d\u65b9\u306b\u3088\u3063\u3066\u306f\u610f\u56f3\u3057\u306a\u3044\u6319\u52d5\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"margin:20px 0;\">\n<div style=\"font-size:12px;color:#9ca3af;margin-bottom:6px;\">catch\u5185\u304b\u3089continue\u3067\u30eb\u30fc\u30d7\u3092\u7d99\u7d9a\u3059\u308b<\/div><pre style=\"background:#1e1e2e;color:#e2e8f0;border-radius:8px;padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;font-family:Consolas,Menlo,monospace;\"><code>const items = [1, 2, 0, 4];\nfor (const item of items) {\n  try {\n    if (item === 0) {\n      throw new Error('0\u306f\u30b9\u30ad\u30c3\u30d7\u3057\u307e\u3059');\n    }\n    console.log(10 \/ item);\n  } catch (error) {\n    console.log(error.message);\n    continue; \/\/ catch\u306e\u4e2d\u304b\u3089\u30eb\u30fc\u30d7\u3092\u7d99\u7d9a\u3067\u304d\u308b\n  }\n}<\/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;\">for\u6587\u306e\u5185\u5074\u306btry...catch\u3092\u7f6e\u304f\u306e\u304c\u57fa\u672c\u30d1\u30bf\u30fc\u30f3<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u30eb\u30fc\u30d7\u51e6\u7406\u306e\u4e2d\u3067\u300c1\u4ef6\u5931\u6557\u3057\u3066\u3082\u6b8b\u308a\u306f\u51e6\u7406\u3092\u7d9a\u3051\u305f\u3044\u300d\u5834\u5408\u306f\u3001\u3053\u306e\u8a18\u4e8b\u306e\u30b3\u30fc\u30c9\u4f8b\u306e\u3088\u3046\u306b<strong>for\u6587\u306e\u5185\u5074\u306btry...catch\u3092\u914d\u7f6e<\/strong>\u3059\u308b\u306e\u304c\u5b9a\u77f3\u3067\u3059\u3002\u9006\u306btry...catch\u3067\u30eb\u30fc\u30d7\u5168\u4f53\u3092\u56f2\u3093\u3067\u3057\u307e\u3046\u3068\u30011\u4ef6\u306e\u30a8\u30e9\u30fc\u3067\u5168\u4ef6\u306e\u51e6\u7406\u304c\u6b62\u307e\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">6-2. try...catch\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3059\u308b\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300ctry...catch\u306f\u9045\u3044\u300d\u3068\u3044\u3046\u8a71\u3092\u805e\u3044\u305f\u3053\u3068\u304c\u3042\u308b\u65b9\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u73fe\u5728\u306e\u4e3b\u8981\u306aJavaScript\u30a8\u30f3\u30b8\u30f3\uff08V8\u306a\u3069\uff09\u3067\u306f\u3001<strong>try...catch\u30d6\u30ed\u30c3\u30af\u81ea\u4f53\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306f\u307b\u307c\u7121\u8996\u3067\u304d\u308b\u30ec\u30d9\u30eb<\/strong>\u307e\u3067\u6700\u9069\u5316\u3055\u308c\u3066\u3044\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;\">\u672c\u5f53\u306b\u6c17\u3092\u3064\u3051\u308b\u3079\u304d\u306ftry...catch\u306e\u300c\u591a\u7528\u300d\u3088\u308a\u300c\u8a2d\u8a08\u300d<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u6027\u80fd\u9762\u3067\u306e\u61f8\u5ff5\u3088\u308a\u3082\u3001<strong>\u300c\u672c\u6765\u306a\u3089if\u6587\u3067\u9632\u3052\u308b\u306f\u305a\u306e\u30b1\u30fc\u30b9\u307e\u3067try...catch\u306b\u983c\u3063\u3066\u3044\u306a\u3044\u304b\u300d<\/strong>\u3068\u3044\u3046\u8a2d\u8a08\u9762\u306e\u307b\u3046\u304c\u91cd\u8981\u3067\u3059\u3002\u4f8b\u3048\u3070\u300c\u5f15\u6570\u304c\u6570\u5024\u304b\u3069\u3046\u304b\u300d\u306f\u4e8b\u524d\u306bif\u6587\u3067\u30c1\u30a7\u30c3\u30af\u3067\u304d\u308b\u306e\u306b\u3001\u308f\u3056\u308f\u3056try...catch\u3067\u30a8\u30e9\u30fc\u3092\u8d77\u3053\u3057\u3066\u304b\u3089\u51e6\u7406\u3059\u308b\u66f8\u304d\u65b9\u306f\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u5206\u304b\u308a\u306b\u304f\u304f\u3057\u307e\u3059\u3002<\/p>\n<\/div>\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>try...catch\u306f\u30eb\u30fc\u30d7\u306e\u5185\u5074\u306b\u7f6e\u304f\u3068\u300c1\u4ef6\u5931\u6557\u3057\u3066\u3082\u7d9a\u884c\u300d\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>\u30eb\u30fc\u30d7\u306e\u5916\u5074\u3092\u56f2\u3080\u3068\u30011\u4ef6\u306e\u30a8\u30e9\u30fc\u3067\u5168\u4f53\u304c\u6b62\u307e\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>\u73fe\u4ee3\u306eJavaScript\u30a8\u30f3\u30b8\u30f3\u3067\u306ftry...catch\u81ea\u4f53\u306e\u901f\u5ea6\u4f4e\u4e0b\u306f\u307b\u307c\u7121\u8996\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>\u4e8b\u524d\u306bif\u6587\u3067\u9632\u3052\u308b\u30b1\u30fc\u30b9\u306f\u3001try...catch\u306b\u983c\u3089\u305aif\u6587\u3067\u66f8\u304f\u65b9\u304c\u8aad\u307f\u3084\u3059\u3044<\/span><\/div>\n\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">AI-ASSISTED CODING<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u3010\u72ec\u81ea\u3011\u30a8\u30e9\u30fc\u51e6\u7406\u30b3\u30fc\u30c9\u3092\u300c\u66f8\u304f\u300d\u304b\u3089\u300cAI\u306b\u6307\u793a\u3059\u308b\u300d\u3078<\/span>\n  <span class=\"section-desc\">\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u304ctry...catch\u3092\u66f8\u304b\u305a\u306b\u5805\u7262\u306a\u51e6\u7406\u3092\u5b9f\u73fe\u3059\u308b\u65b9\u6cd5<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u307e\u3067try...catch\u306e\u57fa\u790e\u3068\u5fdc\u7528\u3092\u4e00\u901a\u308a\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u6b63\u76f4\u306a\u3068\u3053\u308d\u306b\u89e6\u308c\u307e\u3059\u3002<strong>2026\u5e74\u73fe\u5728\u3001\u7d4c\u55b6\u8005\u3084\u975e\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u304c\u3001Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e\u3084\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306e\u8aad\u307f\u65b9\u3092\u3059\u3079\u3066\u6697\u8a18\u3057\u3066\u81ea\u529b\u3067\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u5fc5\u8981\u306f\u8584\u308c\u3066\u304d\u3066\u3044\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7406\u7531\u306f\u660e\u78ba\u3067\u3001<strong>Claude Code<\/strong>\u306e\u3088\u3046\u306aAI\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u300c\u3084\u308a\u305f\u3044\u3053\u3068\u300d\u3092\u65e5\u672c\u8a9e\u3067\u4f1d\u3048\u308b\u3060\u3051\u3067\u3001try...catch\u30fbthrow\u30fbfinally\u3092\u9069\u5207\u306b\u914d\u7f6e\u3057\u305f\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u3001AI\u304c\u81ea\u52d5\u3067\u66f8\u3044\u3066\u5b9f\u884c\u307e\u3067\u3057\u3066\u304f\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u304b\u3089\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\">\u6b63\u76f4\u306b\u8a00\u3046\u3068\u3001\u79c1\u81ea\u8eab\u3082TypeError\u3068ReferenceError\u306e\u9055\u3044\u3092\u6bce\u56de\u899a\u3048\u3066\u3044\u305f\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300c\u3053\u306eAPI\u901a\u4fe1\u304c\u5931\u6557\u3057\u305f\u3068\u304d\u306f\u30ea\u30c8\u30e9\u30a4\u3057\u3066\u3001\u305d\u308c\u3067\u3082\u30c0\u30e1\u306a\u3089\u30ed\u30b0\u306b\u6b8b\u3057\u3066\u300d\u3068\u8a71\u3057\u304b\u3051\u308c\u3070\u3001Claude Code\u304c\u9069\u5207\u306a\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u542b\u3081\u3066\u5b9f\u884c\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/div>\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>Claude Code<\/strong>\uff1aAnthropic\u304c\u63d0\u4f9b\u3059\u308bAI\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3002\u30bf\u30fc\u30df\u30ca\u30eb\u3084\u30c7\u30b9\u30af\u30c8\u30c3\u30d7\u30a2\u30d7\u30ea\u4e0a\u3067\u300c\u3084\u308a\u305f\u3044\u3053\u3068\u300d\u3092\u65e5\u672c\u8a9e\u3067\u4f1d\u3048\u308b\u3068\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u66f8\u304d\u30fb\u30b3\u30fc\u30c9\u306e\u751f\u6210\u30fb\u5b9f\u884c\u307e\u3067\u3092\u81ea\u5f8b\u7684\u306b\u884c\u3044\u307e\u3059\u3002try...catch\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u51e6\u7406\u69cb\u6587\u306e\u6b63\u78ba\u306a\u66f8\u304d\u65b9\u3092\u6697\u8a18\u3057\u3066\u3044\u306a\u304f\u3066\u3082\u3001\u5805\u7262\u306a\u696d\u52d9\u81ea\u52d5\u5316\u306e\u4ed5\u7d44\u307f\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u306f\u3044\u3048\u3001<strong>\u300ctry...catch\u304c\u4f55\u3092\u3057\u3066\u3044\u308b\u304b\u300d\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u3053\u3068\u306b\u306f\u4f9d\u7136\u3068\u3057\u3066\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>AI\u304c\u751f\u6210\u3057\u305f\u30a8\u30e9\u30fc\u51e6\u7406\u304c\u59a5\u5f53\u304b\u3092\u78ba\u8a8d\u3057\u305f\u308a\u3001\u300c\u3053\u306e\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u3068\u304d\u306f\u3053\u3046\u5bfe\u51e6\u3057\u3066\u307b\u3057\u3044\u300d\u3068\u7684\u78ba\u306b\u6307\u793a\u3092\u51fa\u3057\u305f\u308a\u3059\u308b\u306b\u306f\u3001\u6700\u4f4e\u9650\u306e\u69cb\u6587\u7406\u89e3\u304c\u5f79\u306b\u7acb\u3064\u304b\u3089\u3067\u3059\u3002<\/p>\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;\">\u5931\u6557\u3057\u3046\u308b\u51e6\u7406\u3092<br>\u65e5\u672c\u8a9e\u3067\u4f1d\u3048\u308b<br>\uff08\u4f8b: API\u901a\u4fe1\uff09<\/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\u304ctry-catch-<br>finally\u3092\u542b\u3080<br>\u30b3\u30fc\u30c9\u3092\u751f\u6210<\/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;\">AI\u304c\u30b3\u30fc\u30c9\u3092<br>\u5b9f\u884c\u3057\u3001\u5931\u6557\u30b1\u30fc\u30b9\u3082<br>\u691c\u8a3c<\/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;\">\u7d50\u679c\u3092\u898b\u3066<br>\u300c\u3053\u306e\u5834\u5408\u306f<br>\u30ea\u30c8\u30e9\u30a4\u3057\u3066\u300d\u3068\u6307\u793a<\/span><\/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\">\u9762\u767d\u3044\u306e\u306f\u3001Claude Code\u306b\u300c\u3053\u306e\u30a8\u30e9\u30fc\u51e6\u7406\u3001\u4f55\u3092\u60f3\u5b9a\u3057\u3066\u66f8\u3044\u305f\u306e\uff1f\u300d\u3068\u805e\u304f\u3068\u3001\u3069\u306e\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u3092\u60f3\u5b9a\u3057\u3066try...catch\u3092\u914d\u7f6e\u3057\u305f\u304b\u307e\u3067\u65e5\u672c\u8a9e\u3067\u8aac\u660e\u3057\u3066\u304f\u308c\u308b\u70b9\u3067\u3059\u3002\u66f8\u304d\u306a\u304c\u3089\u5b66\u3079\u308b\u306e\u3067\u7406\u89e3\u304c\u65e9\u3044\u3068\u3044\u3046\u58f0\u3082\u3042\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">7-1. \u3069\u3093\u306a\u696d\u52d9\u304c\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u81ea\u52d5\u5316\u3067\u697d\u306b\u306a\u308b\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">try...catch\u304c\u6d3b\u8e8d\u3059\u308b\u5834\u9762\u306f\u3001\u7a81\u304d\u8a70\u3081\u308b\u3068<strong>\u300c\u5916\u90e8\u3068\u306e\u3084\u308a\u53d6\u308a\u3067\u5931\u6557\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u51e6\u7406\u300d<\/strong>\u3059\u3079\u3066\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u696d\u52d9\u306f\u3001\u307e\u3055\u306b\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u542b\u3080\u81ea\u52d5\u5316\u3067\u5de5\u6570\u3068\u30c8\u30e9\u30d6\u30eb\u304c\u5927\u304d\u304f\u6e1b\u308b\u5178\u578b\u4f8b\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>\u5916\u90e8\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u30c7\u30fc\u30bf\u9023\u643a<\/strong>\uff1aAPI\u304c\u4e00\u6642\u7684\u306b\u843d\u3061\u3066\u3082\u81ea\u52d5\u30ea\u30c8\u30e9\u30a4\u3057\u3066\u51e6\u7406\u3092\u7d99\u7d9a\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><strong>\u5927\u91cf\u30d5\u30a1\u30a4\u30eb\u306e\u4e00\u62ec\u51e6\u7406<\/strong>\uff1a1\u4ef6\u304c\u58ca\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3067\u3082\u3001\u6b8b\u308a\u306e\u51e6\u7406\u306f\u6b62\u3081\u305a\u306b\u7d9a\u3051\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>\u30d5\u30a9\u30fc\u30e0\u5165\u529b\u306e\u691c\u8a3c<\/strong>\uff1a\u4e0d\u6b63\u306a\u5165\u529b\u304c\u3042\u3063\u3066\u3082\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3092\u6b62\u3081\u305a\u306b\u30a8\u30e9\u30fc\u3092\u901a\u77e5\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><strong>\u5b9a\u671f\u5b9f\u884c\u30d0\u30c3\u30c1\u51e6\u7406<\/strong>\uff1a\u591c\u9593\u306e\u81ea\u52d5\u51e6\u7406\u304c\u5931\u6557\u3057\u305f\u3068\u304d\u306b\u3001\u62c5\u5f53\u8005\u3078\u81ea\u52d5\u3067\u901a\u77e5\u3059\u308b<\/span><\/div>\n\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;\">\u300c\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u66f8\u3051\u308b\u4eba\u3092\u63a1\u7528\u3059\u308b\u300d\u304b\u3089\u300cAI\u306b\u5805\u7262\u6027\u3092\u6307\u793a\u3067\u304d\u308b\u4eba\u3092\u80b2\u3066\u308b\u300d\u3078<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u5f0a\u793e\u306e\u5b9f\u611f\u3067\u306f\u3001\u3053\u308c\u304b\u3089\u306e\u73fe\u5834\u306b\u5fc5\u8981\u306a\u306e\u306f\u300ctry...catch\u3092\u6b63\u78ba\u306b\u66f8\u3051\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u300d\u3092\u63a1\u7528\u3059\u308b\u3053\u3068\u3088\u308a\u3082\u3001<strong>\u300c\u3053\u306e\u51e6\u7406\u306f\u3069\u3053\u3067\u5931\u6557\u3057\u3046\u308b\u304b\u3001\u5931\u6557\u3057\u305f\u3089\u3069\u3046\u3057\u3066\u307b\u3057\u3044\u304b\u3092\u3001AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u6b63\u78ba\u306a\u65e5\u672c\u8a9e\u3067\u6307\u793a\u3067\u304d\u308b\u4eba\u300d<\/strong>\u3092\u793e\u5185\u306b\u5897\u3084\u3059\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306e\u3088\u3046\u306a\u57fa\u790e\u77e5\u8b58\u306f\u3001\u307e\u3055\u306b\u305d\u306e\u300c\u6b63\u78ba\u306a\u6307\u793a\u300d\u3092\u51fa\u3059\u305f\u3081\u306e\u571f\u53f0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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;\">GENAI CASE STUDY<\/span>\n  <span class=\"section-title\" style=\"display:block;\">\u3010\u72ec\u81ea\u30c7\u30fc\u30bf\u3011GENAI\u793e\u5185\u306e\u30a8\u30e9\u30fc\u51e6\u7406\u8a2d\u8a08\u30fb\u81ea\u52d5\u5316\u4e8b\u4f8b<\/span>\n  <span class=\"section-desc\">Claude Code\u3067\u300c\u5931\u6557\u306b\u5f37\u3044\u4ed5\u7d44\u307f\u300d\u3092\u3069\u3053\u307e\u3067\u81ea\u52d5\u5316\u3057\u3066\u3044\u308b\u304b<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u306f\u3001\u5f0a\u793e\uff08\u682a\u5f0f\u4f1a\u793eGENAI\uff09\u304c\u5b9f\u969b\u306bClaude Code\u3092\u4f7f\u3063\u3066\u3001try...catch\u7684\u306a\u300c\u30a8\u30e9\u30fc\u3078\u306e\u5099\u3048\u300d\u3092\u3069\u306e\u3088\u3046\u306b\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306b\u7d44\u307f\u8fbc\u3093\u3067\u3044\u308b\u304b\u3092\u3001\u6570\u5024\u3068\u4e8b\u4f8b\u30d9\u30fc\u30b9\u3067\u516c\u958b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8-1. \u5f0a\u793e\u306e\u5951\u7d04\u30d7\u30e9\u30f3\u3068\u5c0e\u5165\u7bc4\u56f2<\/h3>\n\n\n\n<table>\n<thead><tr><th>\u9805\u76ee<\/th><th>\u5185\u5bb9<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u5951\u7d04\u30d7\u30e9\u30f3<\/td><td>Claude Max 20x\uff08\u6708$200 \/ \u7d0430,000\u5186\uff09<\/td><\/tr>\n<tr><td>\u5229\u7528\u958b\u59cb<\/td><td>2025\u5e74\u5f8c\u534a\u301c<\/td><\/tr>\n<tr><td>\u5229\u7528\u90e8\u7f72<\/td><td>\u7d4c\u55b6\u30fb\u55b6\u696d\u30fb\u5e83\u544a\u30fb\u958b\u767a\u30fb\u7d4c\u7406\u30fb\u79d8\u66f8\u696d\u52d9\u30fb\u500b\u4eba\u696d\u52d9\u307e\u3067\u5168\u793e<\/td><\/tr>\n<tr><td>\u30a8\u30e9\u30fc\u51e6\u7406\u8a2d\u8a08\u306e\u4e3b\u306a\u7528\u9014<\/td><td>API\u9023\u643a\u306e\u81ea\u52d5\u30ea\u30c8\u30e9\u30a4\u3001\u30d0\u30c3\u30c1\u51e6\u7406\u5931\u6557\u6642\u306eSlack\u901a\u77e5\u3001\u30c7\u30fc\u30bf\u691c\u8a3c\u30a8\u30e9\u30fc\u306e\u30ed\u30b0\u5316<\/td><\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h3 class=\"wp-block-heading\">8-2. \u30a8\u30e9\u30fc\u51e6\u7406\u30fb\u81ea\u52d5\u5316\u306b\u3088\u308b\u524a\u6e1b\u6642\u9593\uff08\u808c\u611f\u30d9\u30fc\u30b9\u30fb2026\u5e744\u6708\u6642\u70b9\uff09<\/h3>\n\n\n\n<table>\n<thead><tr><th>\u696d\u52d9\u9818\u57df<\/th><th>\u4e3b\u306a\u7528\u9014\uff08\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u542b\u3080\u81ea\u52d5\u5316\uff09<\/th><th>\u6982\u7b97\u524a\u6e1b\u6642\u9593<\/th><\/tr><\/thead>\n<tbody>\n<tr><td>\u5e83\u544a\u904b\u7528<\/td><td>API\u9023\u643a\u306e\u5931\u6557\u3092\u81ea\u52d5\u691c\u77e5\u3057Slack\u901a\u77e5\u3001\u624b\u52d5\u5bfe\u5fdc\u3092\u524a\u6e1b<\/td><td>\u903110\u6642\u9593 \u2192 \u90311\u6642\u9593<\/td><\/tr>\n<tr><td>\u7d4c\u7406<\/td><td>\u8acb\u6c42\u66f8\u30c7\u30fc\u30bf\u306e\u691c\u8a3c\u30a8\u30e9\u30fc\u3092\u81ea\u52d5\u3067\u30ed\u30b0\u5316\u30fb\u4ed5\u5206\u3051<\/td><td>\u670840\u6642\u9593 \u2192 \u67085\u6642\u9593<\/td><\/tr>\n<tr><td>\u958b\u767a<\/td><td>LP\u30fbWordPress\u306e\u6295\u7a3f\u51e6\u7406\u5931\u6557\u6642\u306e\u81ea\u52d5\u30ea\u30c8\u30e9\u30a4\u5b9f\u88c5<\/td><td>\u90fd\u5ea6\u6570\u6642\u9593\u524a\u6e1b<\/td><\/tr>\n<tr><td>\u79d8\u66f8\u696d\u52d9<\/td><td>\u30ab\u30ec\u30f3\u30c0\u30fc\u9023\u643a\u306e\u5931\u6557\u6642\u306b\u81ea\u52d5\u3067\u62c5\u5f53\u8005\u3078\u901a\u77e5<\/td><td>\u65e52\u6642\u9593 \u2192 \u65e515\u5206<\/td><\/tr>\n<tr><td>\u55b6\u696d<\/td><td>\u898b\u7a4d\u66f8\u751f\u6210\u306e\u5165\u529b\u30a8\u30e9\u30fc\u3092\u4e8b\u524d\u691c\u77e5\u3057\u3066\u5dee\u3057\u623b\u3057<\/td><td>\u903120\u6642\u9593 \u2192 \u90312\u6642\u9593<\/td><\/tr>\n<\/tbody>\n<\/table>\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;\">\u6570\u5024\u306e\u6ce8\u610f\u66f8\u304d<\/strong>\n  <\/div>\n  <p style=\"margin:0;font-size:15px;line-height:1.8;color:#333;\">\u4e0a\u8a18\u306f\u5f0a\u793e\u306e\u808c\u611f\u30d9\u30fc\u30b9\u306e\u6570\u5024\u3067\u3042\u308a\u3001\u696d\u7a2e\u30fb\u696d\u614b\u30fb\u62c5\u5f53\u8005\u306e\u30b9\u30ad\u30eb\u306b\u3088\u3063\u3066\u524a\u6e1b\u6642\u9593\u306f\u5909\u52d5\u3057\u307e\u3059\u3002\u3042\u304f\u307e\u3067\u300c\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u542b\u3080\u81ea\u52d5\u5316\u3092AI\u306b\u4efb\u305b\u308b\u3068\u3069\u306e\u7a0b\u5ea6\u307e\u3067\u4f7f\u3044\u5012\u305b\u308b\u304b\u300d\u306e\u53c2\u8003\u60c5\u5831\u3068\u3057\u3066\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u5e83\u544a\u904b\u7528\u3067\u306f\u3001\u4ee5\u524d\u306f\u5404\u7a2e\u5e83\u544aAPI\u3068\u306e\u9023\u643a\u304c\u5931\u6557\u3057\u305f\u969b\u306b\u4eba\u304c\u6c17\u3065\u3044\u3066\u624b\u52d5\u3067\u30ea\u30c8\u30e9\u30a4\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u306fClaude Code\u306b\u300c\u3053\u306eAPI\u9023\u643a\u304c\u5931\u6557\u3057\u305f\u30893\u56de\u307e\u3067\u81ea\u52d5\u30ea\u30c8\u30e9\u30a4\u3057\u3066\u3001\u305d\u308c\u3067\u3082\u30c0\u30e1\u306a\u3089Slack\u306b\u901a\u77e5\u3057\u3066\u300d\u3068\u6307\u793a\u3059\u308b\u3060\u3051\u3067\u3001<strong>\u4eba\u9593\u304c\u66f8\u3051\u3070\u6570\u5341\u884c\u306etry-catch-finally\u306b\u76f8\u5f53\u3059\u308b\u51e6\u7406<\/strong>\u3092\u6570\u5206\u3067\u5b9f\u88c5\u3057\u3066\u3044\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\">\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u30b3\u30fc\u30c9\u3092\u3069\u3046\u66f8\u304f\u304b\u3067\u60a9\u3080\u6642\u9593\u305d\u306e\u3082\u306e\u304c\u3001\u4eca\u306f\u300c\u3069\u3093\u306a\u5931\u6557\u30d1\u30bf\u30fc\u30f3\u3092\u60f3\u5b9a\u3059\u3079\u304d\u304b\u300d\u3068\u3044\u3046\u696d\u52d9\u7406\u89e3\u306e\u30b9\u30ad\u30eb\u306b\u7f6e\u304d\u63db\u308f\u3063\u3066\u3044\u307e\u3059\u3002\u6280\u8853\u77e5\u8b58\u30bc\u30ed\u3067\u306f\u96e3\u3057\u3044\u3067\u3059\u304c\u3001\u3053\u306e\u8a18\u4e8b\u30ec\u30d9\u30eb\u306e\u7406\u89e3\u304c\u3042\u308c\u3070\u5341\u5206\u306b\u4f7f\u3044\u3053\u306a\u305b\u307e\u3059\u3002<\/div>\n<\/div>\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\/aibpo\/makase\/blog\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=aibpo_makase\" target=\"_blank\" rel=\"noopener\" aria-label=\"AI\u793e\u54e1AIKATA\uff08\u670830\u4e07\u5186\u3067\u696d\u52d9\u307e\u304b\u305b\u653e\u984c\uff09\u306e\u7121\u6599\u76f8\u8ac7 \u4e88\u7d04\u30da\u30fc\u30b8\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\/09\/cta_blog_makase_20260904.jpg\" alt=\"AI\u793e\u54e1AIKATA\uff5c\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u5fa1\u793e\u306e\u696d\u52d9\u3092\u307e\u308b\u3054\u3068\u5dfb\u304d\u53d6\u308a\u307e\u3059\uff08\u7121\u6599\u76f8\u8ac760\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><a href=\"https:\/\/aikanri.genai-ai.co.jp\/koteihi-line\/?utm_source=blog&#038;utm_medium=h2banner&#038;utm_content=js-try-catch-guide&#038;blog_slug=js-try-catch-guide&#038;blog_title=%E3%80%902026%E5%B9%B49%E6%9C%88%E6%9C%80%E6%96%B0%E3%80%91JavaScript%E3%81%AEtry...catch%E3%81%AE%E4%BD%BF%E3%81%84%E6%96%B9%E3%81%A8%E4%BE%8B%E5%A4%96%E5%87%A6%E7%90%86%E5%AE%8C%E5%85%A8%E3%82%AC%E3%82%A4%E3%83%89%EF%BD%9Cthrow%E3%83%BBfinally%E3%83%BB%E9%9D%9E%E5%90%8C%E6%9C%9F%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A7&#038;blog_url=https%3A%2F%2Fgenai-ai.co.jp%2Fai-kanri%2Fblog%2Fjs-try-catch-guide%2F&#038;utm_campaign=koteihi_shindan\" target=\"_blank\" rel=\"noopener\" aria-label=\"\u516c\u5f0fLINE\u306e\u56fa\u5b9a\u8cbb\u524a\u6e1b\u8a3a\u65ad\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\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\/09\/cta_blog_koteihi_line.jpg\" alt=\"\u5fa1\u793e\u304c\u6e1b\u3089\u305b\u308b\u56fa\u5b9a\u8cbb\u306f\u6708\u3044\u304f\u3089\u304b\uff5c\u516c\u5f0fLINE\u3067\u8cea\u554f\u306b\u7b54\u3048\u308b\u3060\u3051\uff08\u7121\u6599\u30fb\u7d041\u5206\uff09\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"><\/a><\/div>\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 \u2500\u2500 try...catch\u3092\u7406\u89e3\u3059\u308b\u3068\u3001AI\u6307\u793a\u306e\u7cbe\u5ea6\u3082\u4e0a\u304c\u308b<\/span>\n  <span class=\"section-desc\">\u57fa\u790e\u3092\u62bc\u3055\u3048\u305f\u4e0a\u3067\u3001\u300c\u66f8\u304f\u300d\u4f5c\u696d\u81ea\u4f53\u306fAI\u306b\u4efb\u305b\u308b\u9078\u629e\u80a2\u3092\u6301\u3064<\/span>\n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001JavaScript\u306etry...catch\u306e\u57fa\u672c\u69cb\u6587\u304b\u3089\u3001throw\u30fbError\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e\u30fbfinally\u30fb\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u30fbasync\/await\u3067\u306e\u4f8b\u5916\u51e6\u7406\u30fb\u6ce8\u610f\u70b9\u307e\u3067\u306e\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af\u3001\u305d\u3057\u3066AI\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u30b3\u30fc\u30c9\u3092\u66f8\u304b\u305b\u308b\u3068\u3044\u3046\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\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>try...catch\u306f\u300c\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u3066\u3082\u51e6\u7406\u3092\u6b62\u3081\u306a\u3044\u300d\u305f\u3081\u306e\u69cb\u6587\u3067\u3001catch\u306bError\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u6e21\u3055\u308c\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>throw\u3092\u4f7f\u3048\u3070\u3001\u696d\u52d9\u30ed\u30b8\u30c3\u30af\u4e0a\u300c\u7570\u5e38\u300d\u3068\u5224\u65ad\u3057\u305f\u6642\u70b9\u3067\u610f\u56f3\u7684\u306b\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3055\u305b\u3089\u308c\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>TypeError\u30fbReferenceError\u306a\u3069\u30a8\u30e9\u30fc\u306e\u7a2e\u985e\u3092\u898b\u5206\u3051\u308b\u3068\u3001\u539f\u56e0\u7279\u5b9a\u304c\u3057\u3084\u3059\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>finally\u306f\u6210\u529f\u30fb\u5931\u6557\u306b\u95a2\u308f\u3089\u305a\u5fc5\u305a\u5b9f\u884c\u3055\u308c\u3001\u300c\u5f8c\u7247\u4ed8\u3051\u300d\u51e6\u7406\u306b\u5411\u3044\u3066\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>async\/await\u3068\u7d44\u307f\u5408\u308f\u305b\u308c\u3070\u3001\u975e\u540c\u671f\u51e6\u7406\u3067\u3082\u540c\u3058\u611f\u899a\u3067try...catch\u304c\u4f7f\u3048\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>\u30eb\u30fc\u30d7\u306e\u5185\u5074\u306btry...catch\u3092\u7f6e\u3051\u3070\u300c1\u4ef6\u5931\u6557\u3057\u3066\u3082\u6b8b\u308a\u306f\u51e6\u7406\u3092\u7d9a\u3051\u308b\u300d\u8a2d\u8a08\u306b\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>\u30b3\u30fc\u30c9\u306e\u6b63\u78ba\u306a\u66f8\u304d\u65b9\u3092\u6697\u8a18\u3057\u3066\u3044\u306a\u304f\u3066\u3082\u3001Claude Code\u306b\u65e5\u672c\u8a9e\u3067\u6307\u793a\u3059\u308c\u3070try...catch\u76f8\u5f53\u306e\u5805\u7262\u306a\u51e6\u7406\u3092\u5b9f\u884c\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>\u5f0a\u793eGENAI\u3067\u306f\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u542b\u3080\u81ea\u52d5\u5316\u3092\u5168\u793e\u3067\u56de\u3057\u3001\u30c8\u30e9\u30d6\u30eb\u5bfe\u5fdc\u306e\u5de5\u6570\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3057\u3066\u3044\u308b<\/span><\/div>\n\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u3082\u91cd\u8981\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002<strong>try...catch\u306e\u7406\u89e3\u306f\u300c\u81ea\u5206\u3067\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u305f\u3081\u300d\u3060\u3051\u3067\u306a\u304f\u3001\u300cAI\u306b\u6b63\u78ba\u306a\u6307\u793a\u3092\u51fa\u3059\u305f\u3081\u300d\u306e\u571f\u53f0\u3068\u3057\u3066\u3082\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>\u69cb\u6587\u306e\u610f\u5473\u304c\u308f\u304b\u3063\u3066\u3044\u308c\u3070\u3001AI\u304c\u751f\u6210\u3057\u305f\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u59a5\u5f53\u6027\u3092\u5224\u65ad\u3067\u304d\u3001\u4fee\u6b63\u306e\u6307\u793a\u3082\u7684\u78ba\u306b\u51fa\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f0a\u793e\u3067\u306f\u3001Claude Code\u3092\u4f7f\u3063\u305f\u696d\u52d9\u81ea\u52d5\u5316\u306e\u8a2d\u8a08\u304b\u3089\u4f34\u8d70\u307e\u3067\u652f\u63f4\u3059\u308b\u300cAI\u9b3c\u7ba1\u7406\u300d\u3068\u3044\u3046\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u8a2d\u8a08\u306b\u9650\u3089\u305a\u3001\u793e\u5185\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u300c\u5931\u6557\u306b\u5f37\u3044\u4ed5\u7d44\u307f\u300d\u306b\u3069\u3053\u307e\u3067\u8fd1\u3065\u3051\u3089\u308c\u308b\u304b\u3002\u6c17\u306b\u306a\u308b\u65b9\u306f\u3001\u305c\u3072\u4ee5\u4e0b\u304b\u3089\u304a\u6c17\u8efd\u306b\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\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\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u81ea\u5206\u3067\u66f8\u304f\u3079\u304d\u304b\u3001AI\u306b\u4efb\u305b\u308b\u3079\u304d\u304b\u300d\u3067\u8ff7\u3063\u305f\u3089\u3001\u307e\u305a\u306f\u4eca\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u3069\u3093\u306a\u5931\u6557\u304c\u8d77\u304d\u3046\u308b\u304b\u3092\u6d17\u3044\u51fa\u3059\u3068\u3053\u308d\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\u3002\u7121\u6599\u76f8\u8ac7\u3067\u4e00\u7dd2\u306b\u6574\u7406\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u300c\u5931\u6557\u306b\u5f37\u3044\u4ed5\u7d44\u307f\u300d\u3065\u304f\u308a\u3001AI\u9b3c\u7ba1\u7406\u304c\u4e00\u7dd2\u306b\u8a2d\u8a08\u3057\u307e\u3059<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">try...catch\u3092\u81ea\u5206\u3067\u66f8\u304f\u304b\u3001AI\u306b\u4efb\u305b\u308b\u304b\u3002<br>\u3042\u306a\u305f\u306e\u4f1a\u793e\u306e\u30b7\u30b9\u30c6\u30e0\u3084\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u300c\u5931\u6557\u3057\u3046\u308b\u30dd\u30a4\u30f3\u30c8\u300d\u3092\u68da\u5378\u3057\u3057\u3066\u3001\u6700\u9069\u306a\u5bfe\u7b56\u3092\u4e00\u7dd2\u306b\u8003\u3048\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\">\u300cJavaScript\u306f\u66f8\u3051\u306a\u3044\u304c\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30a8\u30e9\u30fc\u5bfe\u5fdc\u3092\u5f37\u5316\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u65b9\u306b\u3053\u305d\u6700\u9069\u3067\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u76f8\u8ac7\u3067\u3001\u696d\u52d9\u306e\u4e2d\u3067\u6700\u3082\u30ea\u30b9\u30af\u304c\u5927\u304d\u3044\u30dd\u30a4\u30f3\u30c8\u3092\u4e00\u7dd2\u306b\u898b\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/div>\n<\/div>\n\n\n\n<p>\u3053\u3053\u304b\u3089\u5148\u306e\u9032\u3081\u65b9\u306f\u3001\u5927\u304d\u304f2\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u81ea\u793e\u3067\u56de\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u305f\u3044\u65b9<\/strong>\u306f\u3001<strong>AI\u9b3c\u7ba1\u7406<\/strong>\u3067Claude Code\uff0fCodex\u306e\u4f7f\u3044\u65b9\u304b\u3089\u696d\u52d9\u8a2d\u8a08\u30fb\u793e\u5185\u5b9a\u7740\u307e\u3067\u4f34\u8d70\u3092\u53d7\u3051\u306a\u304c\u3089\u3001\u793e\u5185\u306b\u4ed5\u7d44\u307f\u3092\u4f5c\u308b\u9053\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u899a\u3048\u308b\u3088\u308a\u4efb\u305b\u305f\u3044\u65b9<\/strong>\u306f\u3001<strong>AI\u793e\u54e1AIKATA<\/strong>\u3067\u3053\u306e\u8a18\u4e8b\u306e\u3088\u3046\u306a\u5b9a\u578b\u696d\u52d9\u3092\u4e38\u3054\u3068\u9810\u3051\u308b\u9053\u304c\u3042\u308a\u307e\u3059\u3002\u6599\u91d1\u306f\u670830\u4e07\u5186\u306e\u6708\u984d\u5b9a\u984d\u3001\u8ffd\u52a0\u8cbb\u7528\u306f0\u5186\u3067\u3059\u3002<\/p>\n<p>\u3069\u3061\u3089\u304c\u5408\u3046\u304b\u306f\u3001\u696d\u52d9\u91cf\u3068\u793e\u5185\u4f53\u5236\u6b21\u7b2c\u3067\u3059\u3002\u7121\u6599\u76f8\u8ac7\u30fb\u7121\u6599\u9069\u5408\u8a3a\u65ad\u3067\u3001\u8cb4\u793e\u306e\u5834\u5408\u306f\u3069\u3061\u3089\u304c\u5411\u304f\u304b\u304b\u3089\u3054\u76f8\u8ac7\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p>\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-try-catch-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=\"AI\u793e\u54e1AIKATA \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;\">AI\u793e\u54e1AIKATA<\/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\u670830\u4e07\u5186\u306e\u5b9a\u984d\u3067\u307e\u304b\u305b\u653e\u984c\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-try-catch-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;\">AI\u793e\u54e1AIKATA\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. try...catch\u3068if\u6587\u306b\u3088\u308b\u4e8b\u524d\u30c1\u30a7\u30c3\u30af\u3001\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u300c\u4e8b\u524d\u306b\u6761\u4ef6\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3082\u306e\u300d\u306fif\u6587\u3067\u9632\u304e\u3001\u300c\u5916\u90e8\u8981\u56e0\u3067\u4e88\u6e2c\u3057\u304d\u308c\u306a\u3044\u3082\u306e\uff08\u901a\u4fe1\u65ad\u30fb\u30d5\u30a1\u30a4\u30eb\u7834\u640d\u306a\u3069\uff09\u300d\u306ftry...catch\u3067\u5bfe\u51e6\u3059\u308b\u306e\u304c\u57fa\u672c\u306e\u4f7f\u3044\u5206\u3051\u3067\u3059\u3002\u4e21\u65b9\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u306e\u304c\u5b9f\u52d9\u3067\u306f\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. catch\u30d6\u30ed\u30c3\u30af\u3067\u4f55\u3082\u3057\u306a\u3044\uff08\u7a7a\u306ecatch\uff09\u306e\u306f\u3088\u304f\u306a\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u57fa\u672c\u7684\u306b\u306f\u907f\u3051\u308b\u3079\u304d\u3067\u3059\u3002\u30a8\u30e9\u30fc\u3092\u63e1\u308a\u3064\u3076\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u5f8c\u3067\u539f\u56e0\u4e0d\u660e\u306e\u4e0d\u5177\u5408\u3068\u3057\u3066\u767a\u899a\u3057\u3001\u8abf\u67fb\u304c\u96e3\u822a\u3057\u307e\u3059\u3002\u6700\u4f4e\u9650console.error\u3067\u30ed\u30b0\u306b\u6b8b\u3059\u304b\u3001\u30b3\u30e1\u30f3\u30c8\u3067\u300c\u7121\u8996\u3057\u3066\u554f\u984c\u306a\u3044\u7406\u7531\u300d\u3092\u660e\u8a18\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. finally\u306e\u4e2d\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. finally\u30d6\u30ed\u30c3\u30af\u5185\u3067\u65b0\u305f\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u305d\u306e\u30a8\u30e9\u30fc\u304c\u512a\u5148\u3055\u308c\u3001try\u3084catch\u3067\u51e6\u7406\u3057\u3066\u3044\u305f\u5143\u306e\u30a8\u30e9\u30fc\u60c5\u5831\u306f\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002finally\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u8eab\u306f\u3001\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u306b\u304f\u3044\u30b7\u30f3\u30d7\u30eb\u306a\u51e6\u7406\u306b\u7559\u3081\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u72ec\u81ea\u306e\u30a8\u30e9\u30fc\u30af\u30e9\u30b9\u3092\u4f5c\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u3067\u304d\u307e\u3059\u3002<code>class ValidationError extends Error {}<\/code>\u306e\u3088\u3046\u306b\u7d44\u307f\u8fbc\u307f\u306eError\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3059\u308c\u3070\u3001\u72ec\u81ea\u306e\u540d\u524d\u3092\u6301\u3064\u30a8\u30e9\u30fc\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002instanceof\u3067\u5224\u5b9a\u3067\u304d\u308b\u305f\u3081\u3001\u696d\u52d9\u56fa\u6709\u306e\u30a8\u30e9\u30fc\u7a2e\u5225\u3092\u6271\u3046\u969b\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. try...catch\u306fPython\u306e\u4f8b\u5916\u51e6\u7406\u3068\u8003\u3048\u65b9\u306f\u540c\u3058\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\uff08\u6b63\u5e38\u7cfb\u3068\u7570\u5e38\u7cfb\u3092\u5206\u3051\u3066\u66f8\u304f\uff09\u306f\u5171\u901a\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u69cb\u6587\u306f\u7570\u306a\u308a\u307e\u3059\u3002Python\u306ftry\u3068except\u3068finally\u3067else\u3082\u4f7f\u3048\u3001JavaScript\u306ftry\u30fbcatch\u30fbfinally\u306e3\u3064\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u8a00\u8a9e\u3054\u3068\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u308bError\u306e\u7a2e\u985e\u3082\u7570\u306a\u308b\u305f\u3081\u3001\u5bfe\u5fdc\u8868\u3067\u78ba\u8a8d\u3059\u308b\u306e\u304c\u78ba\u5b9f\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q. \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u672a\u7d4c\u9a13\u3067\u3082Claude Code\u3067\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u542b\u3080\u30b3\u30fc\u30c9\u306f\u5b9f\u73fe\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A. \u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002Claude Code\u306f\u300c\u3053\u306e\u51e6\u7406\u304c\u5931\u6557\u3057\u305f\u30893\u56de\u307e\u3067\u81ea\u52d5\u3067\u3084\u308a\u76f4\u3057\u3066\u3001\u305d\u308c\u3067\u3082\u30c0\u30e1\u306a\u3089\u62c5\u5f53\u8005\u306b\u901a\u77e5\u3057\u3066\u300d\u3068\u3044\u3063\u305f\u65e5\u672c\u8a9e\u306e\u6307\u793a\u304b\u3089\u3001\u5fc5\u8981\u306atry-catch-finally\u3092\u542b\u3080\u30b3\u30fc\u30c9\u3092\u81ea\u52d5\u3067\u751f\u6210\u30fb\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306e\u57fa\u790e\u77e5\u8b58\u304c\u3042\u308c\u3070\u3001\u751f\u6210\u7d50\u679c\u306e\u59a5\u5f53\u6027\u3082\u3088\u308a\u6b63\u78ba\u306b\u5224\u65ad\u3067\u304d\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\": \"try...catch\u3068if\u6587\u306b\u3088\u308b\u4e8b\u524d\u30c1\u30a7\u30c3\u30af\u3001\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u300c\u4e8b\u524d\u306b\u6761\u4ef6\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3082\u306e\u300d\u306fif\u6587\u3067\u9632\u304e\u3001\u300c\u5916\u90e8\u8981\u56e0\u3067\u4e88\u6e2c\u3057\u304d\u308c\u306a\u3044\u3082\u306e\uff08\u901a\u4fe1\u65ad\u30fb\u30d5\u30a1\u30a4\u30eb\u7834\u640d\u306a\u3069\uff09\u300d\u306ftry...catch\u3067\u5bfe\u51e6\u3059\u308b\u306e\u304c\u57fa\u672c\u306e\u4f7f\u3044\u5206\u3051\u3067\u3059\u3002\u4e21\u65b9\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u306e\u304c\u5b9f\u52d9\u3067\u306f\u4e00\u822c\u7684\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"catch\u30d6\u30ed\u30c3\u30af\u3067\u4f55\u3082\u3057\u306a\u3044\uff08\u7a7a\u306ecatch\uff09\u306e\u306f\u3088\u304f\u306a\u3044\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u57fa\u672c\u7684\u306b\u306f\u907f\u3051\u308b\u3079\u304d\u3067\u3059\u3002\u30a8\u30e9\u30fc\u3092\u63e1\u308a\u3064\u3076\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u5f8c\u3067\u539f\u56e0\u4e0d\u660e\u306e\u4e0d\u5177\u5408\u3068\u3057\u3066\u767a\u899a\u3057\u3001\u8abf\u67fb\u304c\u96e3\u822a\u3057\u307e\u3059\u3002\u6700\u4f4e\u9650console.error\u3067\u30ed\u30b0\u306b\u6b8b\u3059\u304b\u3001\u30b3\u30e1\u30f3\u30c8\u3067\u300c\u7121\u8996\u3057\u3066\u554f\u984c\u306a\u3044\u7406\u7531\u300d\u3092\u660e\u8a18\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"finally\u306e\u4e2d\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"finally\u30d6\u30ed\u30c3\u30af\u5185\u3067\u65b0\u305f\u306b\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u305d\u306e\u30a8\u30e9\u30fc\u304c\u512a\u5148\u3055\u308c\u3001try\u3084catch\u3067\u51e6\u7406\u3057\u3066\u3044\u305f\u5143\u306e\u30a8\u30e9\u30fc\u60c5\u5831\u306f\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002finally\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u8eab\u306f\u3001\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u306b\u304f\u3044\u30b7\u30f3\u30d7\u30eb\u306a\u51e6\u7406\u306b\u7559\u3081\u308b\u306e\u304c\u5b89\u5168\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u72ec\u81ea\u306e\u30a8\u30e9\u30fc\u30af\u30e9\u30b9\u3092\u4f5c\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u3067\u304d\u307e\u3059\u3002<code>class ValidationError extends Error {}<\/code>\u306e\u3088\u3046\u306b\u7d44\u307f\u8fbc\u307f\u306eError\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3059\u308c\u3070\u3001\u72ec\u81ea\u306e\u540d\u524d\u3092\u6301\u3064\u30a8\u30e9\u30fc\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002instanceof\u3067\u5224\u5b9a\u3067\u304d\u308b\u305f\u3081\u3001\u696d\u52d9\u56fa\u6709\u306e\u30a8\u30e9\u30fc\u7a2e\u5225\u3092\u6271\u3046\u969b\u306b\u4fbf\u5229\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"try...catch\u306fPython\u306e\u4f8b\u5916\u51e6\u7406\u3068\u8003\u3048\u65b9\u306f\u540c\u3058\u3067\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\uff08\u6b63\u5e38\u7cfb\u3068\u7570\u5e38\u7cfb\u3092\u5206\u3051\u3066\u66f8\u304f\uff09\u306f\u5171\u901a\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u69cb\u6587\u306f\u7570\u306a\u308a\u307e\u3059\u3002Python\u306ftry\u3068except\u3068finally\u3067else\u3082\u4f7f\u3048\u3001JavaScript\u306ftry\u30fbcatch\u30fbfinally\u306e3\u3064\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u8a00\u8a9e\u3054\u3068\u306b\u7528\u610f\u3055\u308c\u3066\u3044\u308bError\u306e\u7a2e\u985e\u3082\u7570\u306a\u308b\u305f\u3081\u3001\u5bfe\u5fdc\u8868\u3067\u78ba\u8a8d\u3059\u308b\u306e\u304c\u78ba\u5b9f\u3067\u3059\u3002\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u672a\u7d4c\u9a13\u3067\u3082Claude Code\u3067\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u542b\u3080\u30b3\u30fc\u30c9\u306f\u5b9f\u73fe\u3067\u304d\u307e\u3059\u304b\uff1f\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002Claude Code\u306f\u300c\u3053\u306e\u51e6\u7406\u304c\u5931\u6557\u3057\u305f\u30893\u56de\u307e\u3067\u81ea\u52d5\u3067\u3084\u308a\u76f4\u3057\u3066\u3001\u305d\u308c\u3067\u3082\u30c0\u30e1\u306a\u3089\u62c5\u5f53\u8005\u306b\u901a\u77e5\u3057\u3066\u300d\u3068\u3044\u3063\u305f\u65e5\u672c\u8a9e\u306e\u6307\u793a\u304b\u3089\u3001\u5fc5\u8981\u306atry-catch-finally\u3092\u542b\u3080\u30b3\u30fc\u30c9\u3092\u81ea\u52d5\u3067\u751f\u6210\u30fb\u5b9f\u884c\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306e\u57fa\u790e\u77e5\u8b58\u304c\u3042\u308c\u3070\u3001\u751f\u6210\u7d50\u679c\u306e\u59a5\u5f53\u6027\u3082\u3088\u308a\u6b63\u78ba\u306b\u5224\u65ad\u3067\u304d\u307e\u3059\u3002\"\n      }\n    }\n  ]\n}\n<\/script>\n\n\n","protected":false},"excerpt":{"rendered":"<p>\u300cJavaScript\u3067try...catch\u3063\u3066\u3069\u3046\u66f8\u3051\u3070\u3044\u3044\u306e\uff1f\u300d\u300cthrow\u3068Error\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u95a2\u4fc2\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u300d\u2014\u2014\u3053\u306e\u8a18\u4e8b\u306b\u305f\u3069\u308a\u7740\u3044\u305f\u3042\u306a\u305f\u306f\u3001\u304a\u305d\u3089\u304f\u305d\u3093\u306a\u7591\u554f\u3092\u62b1\u3048\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002 try... 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