{"id":9704,"date":"2025-07-25T22:11:35","date_gmt":"2025-07-25T13:11:35","guid":{"rendered":"https:\/\/techmania.jp\/blog\/?p=9704"},"modified":"2025-07-25T22:11:37","modified_gmt":"2025-07-25T13:11:37","slug":"javascript-confirm","status":"publish","type":"post","link":"https:\/\/techmania.jp\/blog\/javascript-confirm\/","title":{"rendered":"\u3010JavaScript\u5165\u9580\u3011confirm\u3067\u300c\u306f\u3044\/\u3044\u3044\u3048\u300d\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b"},"content":{"rendered":"\n<p>JavaScript\u306b\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u8b66\u544a\u3092\u51fa\u3057\u305f\u308a\u3001\u9078\u629e\u3092\u4fc3\u3057\u305f\u308a\u3059\u308b\u969b\u306b\u4f7f\u7528\u3067\u304d\u308b\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u8868\u793a\u7528\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u3044\u304f\u3064\u304b\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001\u305d\u306e\u4e2d\u306e\uff11\u3064\u3067\u3042\u308b confirm \u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3001\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<br>\u57fa\u672c\u69cb\u6587\u304b\u3089\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b\u307e\u3067\u5408\u308f\u305b\u3066\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\">JavaScript\u306econfirm\u30e1\u30bd\u30c3\u30c9\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>confirm\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3068\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b \u300cOK\u300d \u307e\u305f\u306f \u300c\u30ad\u30e3\u30f3\u30bb\u30eb\u300d \u306e\u9078\u629e\u80a2\u3067\u30e6\u30fc\u30b6\u30fc\u306b\u78ba\u8a8d\u3092\u8981\u6c42\u3059\u308b\u5c0f\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm1.webp\" class=\"post-img\">\n\n\n\n<p>confirm\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u306b\u9078\u629e\u3092\u4fc3\u3059\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u7d50\u679c\u306b\u5fdc\u3058\u305f\u51e6\u7406\u306e\u632f\u308a\u5206\u3051\u304c\u3067\u304d\u308b\u4fbf\u5229\u306a\u6a5f\u80fd\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3070\u3001\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u306e\u5185\u5bb9\u3092\u9001\u4fe1\u3059\u308b\u969b\u3084\u3001\u30c7\u30fc\u30bf\u524a\u9664\u306a\u3069\u306e\u91cd\u8981\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3059\u308b\u524d\u306a\u3069\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u78ba\u8a8d\u3092\u6c42\u3081\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u9762\u3067\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\">confirm\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p>\u305d\u308c\u3067\u306f\u65e9\u901f\u3001confirm\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 id=\"outline__2_1\" class=\"wp-block-heading\">\u57fa\u672c\u69cb\u6587\u3068\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>confirm\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u57fa\u672c\u69cb\u6587\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>window.confirm(&quot;\u30e1\u30c3\u30bb\u30fc\u30b8&quot;) \/\/ &#39;window.&#39;\u306f\u7701\u7565\u53ef\u80fd<\/code><\/pre><\/div>\n\n\n\n<p>\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u969b\u306f\u3001\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306e\u307f\u3067\u7c21\u5358\u306b\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30e1\u30bd\u30c3\u30c9\u306e\u8fd4\u308a\u5024\u3068\u3057\u3066\u3001OK\u30dc\u30bf\u30f3\u304c\u9078\u629e\u3055\u308c\u305f\u5834\u5408\u306b\u306f true \u304c\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u304c\u9078\u629e\u3055\u308c\u305f\u5834\u5408\u306b\u306f false \u304c\u8fd4\u5374\u3055\u308c\u308b\u305f\u3081\u3001\u5909\u6570\u306b\u683c\u7d0d\u3057\u305f\u308a\u3001\u6761\u4ef6\u5f0f\u3068\u3057\u3066\u6d3b\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__2_2\" class=\"wp-block-heading\">\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b<\/h3>\n\n\n\n<p>\u57fa\u672c\u69cb\u6587\u3092\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3067\u3001\u5b9f\u969b\u306bWeb\u4e0a\u3067\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u304c\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;html&gt;\n\n&lt;head&gt;\n    &lt;meta charset=&quot;utf-8&quot;&gt;\n    &lt;meta name=&quot;viewport&quot; content=&quot;width=device-width&quot;&gt;\n    &lt;title&gt;SampleConfirm&lt;\/title&gt;\n&lt;\/head&gt;\n\n&lt;body&gt;\n    &lt;script type=&quot;text\/javascript&quot;&gt;\n        window.confirm(&quot;\u672c\u5f53\u306b\u524a\u9664\u3057\u307e\u3059\u304b\uff1f&quot;);\n    &lt;\/script&gt;\n&lt;\/body&gt;\n\n&lt;\/html&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm2.webp\" class=\"post-img\">\n\n\n\n<p>\u8868\u793a\u306b\u5fc5\u8981\u306a\u8a2d\u5b9a\u306f\u3053\u308c\u3060\u3051\u3067\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u6bb5\u968e\u3067\u306f\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u3082\u4f55\u3082\u52d5\u4f5c\u3057\u306a\u3044\u305f\u3081\u3001\u5b9f\u969b\u306b\u4f7f\u7528\u3059\u308b\u969b\u306f\u5404\u30dc\u30bf\u30f3\u306b\u5bfe\u5fdc\u3059\u308b\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__2_3\" class=\"wp-block-heading\">\u5909\u6570\u3092\u4f7f\u3063\u3066\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3059\u308b<\/h3>\n\n\n\n<p>confirm\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306b\u6307\u5b9a\u3059\u308b\u6587\u5b57\u5217\u306b\u306f\u3001\u5909\u6570\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<br>\u5b9f\u969b\u306e\u958b\u767a\u3067\u306f\u3001\u4e8b\u524d\u306b\u6c7a\u3081\u3089\u308c\u305f\u6587\u7ae0\u3060\u3051\u3067\u306a\u304f\u3001\u5909\u6570\u3092\u4f7f\u7528\u3057\u3066\u4e00\u90e8\u306e\u6587\u5b57\u3092\u52d5\u7684\u306b\u5909\u5316\u3055\u305b\u308b\u3053\u3068\u3082\u591a\u3005\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>const name = &quot;\u5c71\u7530\u592a\u90ce&quot;\nwindow.confirm(`\u3042\u306a\u305f\u306e\u540d\u524d\u306f\u300c${name}\u300d\u3067\u5408\u3063\u3066\u3044\u307e\u3059\u304b\uff1f`);<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm3.webp\" class=\"post-img\">\n\n\n\n<p>\u5909\u6570 \u300cname\u300d \u306b\u683c\u7d0d\u3057\u305f\u6587\u5b57\u5217\u304c\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u4e0a\u8a18\u306f\u30b5\u30f3\u30d7\u30eb\u306e\u305f\u3081\u3001\u5909\u6570\u306b\u683c\u7d0d\u3059\u308b\u5024\u3082\u30d9\u30bf\u6253\u3061\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u5b9f\u969b\u306b\u306f\u52d5\u4f5c\u306e\u904e\u7a0b\u3067\u53d6\u5f97\u3057\u305f\u30c7\u30fc\u30bf\u3092\u53cd\u6620\u3055\u305b\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__2_4\" class=\"wp-block-heading\">\u8868\u793a\u3059\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6539\u884c\u3059\u308b<\/h3>\n\n\n\n<p>\u30c0\u30a4\u30a2\u30ed\u30b0\u306b\u8868\u793a\u3059\u308b\u6587\u7ae0\u3092\u4efb\u610f\u306e\u7b87\u6240\u3067\u6539\u884c\u3057\u3001\u8907\u6570\u884c\u306b\u6e21\u3063\u3066\u8868\u793a\u3055\u305b\u305f\u3044\u5834\u5408\u3082\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002<br>\u305d\u306e\u5834\u5408\u306f\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u30a8\u30b9\u30b1\u30fc\u30d7\u30b7\u30fc\u30b1\u30f3\u30b9\u3068\u306f\u3001\u305f\u3068\u3048\u3070\u6539\u884c\u3084\u30bf\u30d6\u306a\u3069\u306e\u6587\u5b57\u3068\u3057\u3066\u5165\u529b\u304c\u3067\u304d\u306a\u3044\u8868\u8a18\u3092\u3001\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5()\u3068\u6587\u5b57\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u8868\u73fe\u3059\u308b\u7279\u6b8a\u306a\u6587\u5b57\u306e\u3053\u3068\u3092\u8a00\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6539\u884c\u306f\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u30b7\u30fc\u30b1\u30f3\u30b9\u3067 &#8220;\\n&#8221; \u3068\u8a18\u8ff0\u3057\u307e\u3059\u3002<br>\u6587\u5b57\u5217\u5185\u306e\u6539\u884c\u3057\u305f\u3044\u5834\u6240\u306b\u5165\u529b\u3059\u308b\u3053\u3068\u3067\u3001\u753b\u9762\u8868\u793a\u306e\u969b\u306b\u6587\u7ae0\u304c\u6539\u884c\u3055\u308c\u305f\u72b6\u614b\u3067\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u5b9f\u969b\u306e\u52d5\u4f5c\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>window.confirm(&quot;\u30c7\u30fc\u30bf\uff11\\n\u30c7\u30fc\u30bf\uff12\\n\u30c7\u30fc\u30bf\uff13\\n\\n\u3053\u308c\u3089\u306e\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3057\u307e\u3059\u304b\uff1f&quot;);<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm4.webp\" class=\"post-img\">\n\n\n\n<p>\u8868\u793a\u7d50\u679c\u3092\u898b\u308b\u3068\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u8a18\u8ff0\u3057\u305f\u7b87\u6240\u3067\u6539\u884c\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u306d\u3002<br>\u3053\u306e\u3088\u3046\u306b\u3001\u6587\u5b57\u5217\u306e\u6539\u884c\u306f &#8220;\\n&#8221; \u3092\u4f7f\u7528\u3057\u3066\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__2_5\" class=\"wp-block-heading\">\u30dc\u30bf\u30f3\u3084\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u969b\u306b\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u51fa\u3059<\/h3>\n\n\n\n<p>\u3053\u308c\u307e\u3067\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30c8\u30ea\u30ac\u30fc\u3068\u306a\u308b\u30a4\u30d9\u30f3\u30c8\u3092\u8a2d\u3051\u305a\u306b\u76f4\u63a5\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3055\u305b\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u5b9f\u969b\u306b\u306f\u7279\u5b9a\u306e\u30dc\u30bf\u30f3\u3084\u30ea\u30f3\u30af\u306a\u3069\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u969b\u306b\u8868\u793a\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u7c21\u5358\u306a\u4f8b\u3067\u52d5\u4f5c\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;body&gt;\n    &lt;button id=&quot;btn&quot;&gt;\u30b5\u30f3\u30d7\u30eb\u30dc\u30bf\u30f3&lt;\/button&gt;\n\n    &lt;script type=&quot;text\/javascript&quot;&gt;\n        const btn = document.getElementById(&#39;btn&#39;);\n        btn.addEventListener(&#39;click&#39;, () =&gt; {\n            window.confirm(&quot;\u30b5\u30f3\u30d7\u30eb\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u307e\u3057\u305f&quot;);\n        }, false);\n    &lt;\/script&gt;\n&lt;\/body&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30da\u30fc\u30b8\u4e0a\u306b\u30dc\u30bf\u30f3\u3092\uff11\u3064\u914d\u7f6e\u3057\u3001\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u969b\u306b\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u3088\u3046\u51e6\u7406\u3092\u8a18\u8ff0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5b9f\u969b\u306b\u30dc\u30bf\u30f3\u3092\u62bc\u4e0b\u3059\u308b\u3068\u3001addEventListener\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306b\u6307\u5b9a\u3057\u305f\u95a2\u6570\u304c\u5b9f\u884c\u3055\u308c\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u753b\u9762\u4e0a\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm5.webp\" class=\"post-img\">\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm6.webp\" class=\"post-img\">\n\n\n\n<p>id\u5c5e\u6027\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30d9\u30f3\u30c8\u306e\u53d6\u5f97\u3092\u884c\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u30ea\u30f3\u30af\u306e\u5834\u5408\u3082\u307b\u3068\u3093\u3069\u540c\u3058\u30b3\u30fc\u30c9\u3067\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;body&gt;\n    &lt;a id=&quot;link&quot; href=&quot;https:\/\/www.google.co.jp\/&quot;&gt;\u30b5\u30f3\u30d7\u30eb\u30ea\u30f3\u30af&lt;\/a&gt;\n\n    &lt;script type=&quot;text\/javascript&quot;&gt;\n        const link = document.getElementById(&#39;link&#39;);\n        link.addEventListener(&#39;click&#39;, function () {\n            window.confirm(&quot;\u5916\u90e8\u306e\u30b5\u30a4\u30c8\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002\u3088\u308d\u3057\u3044\u3067\u3059\u304b\uff1f&quot;);\n        }, false);\n    &lt;\/script&gt;\n&lt;\/body&gt;<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm14.webp\" class=\"post-img\">\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm15.webp\" class=\"post-img\">\n\n\n\n<h2 id=\"outline__3\" class=\"wp-block-heading\">\u6761\u4ef6\u5206\u5c90\u3068confirm\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b<\/h2>\n\n\n\n<p>\u5148\u307b\u3069\u3082\u89e3\u8aac\u3057\u305f\u3088\u3046\u306b\u3001confirm\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u62bc\u4e0b\u3057\u305f\u30dc\u30bf\u30f3\u306b\u5fdc\u3058\u3066 true \u304b false \u306e\u3069\u3061\u3089\u304b\u304c\u8fd4\u5374\u3055\u308c\u307e\u3059\u3002<br>\u305d\u306e\u305f\u3081\u3001\u30e1\u30bd\u30c3\u30c9\u306e\u8fd4\u308a\u5024\u3092\u5229\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u9078\u629e\u306b\u5408\u308f\u305b\u305f\u6761\u4ef6\u5206\u5c90\u3092\u884c\u3046\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;body&gt;\n    &lt;a id=&quot;link&quot; href=&quot;https:\/\/www.google.co.jp\/&quot;&gt;\u30b5\u30f3\u30d7\u30eb\u30ea\u30f3\u30af&lt;\/a&gt;\n\n    &lt;script type=&quot;text\/javascript&quot;&gt;\n        const btn = document.getElementById(&#39;link&#39;);\n        btn.addEventListener(&#39;click&#39;, function (event) {\n            const result = window.confirm(&quot;\u5916\u90e8\u306e\u30b5\u30a4\u30c8\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002\u3088\u308d\u3057\u3044\u3067\u3059\u304b\uff1f&quot;);\n            if (result) {\n                console.log(&quot;\u5916\u90e8\u30b5\u30a4\u30c8\u306b\u79fb\u52d5\u3057\u307e\u3057\u305f&quot;)\n            } else {\n                event.preventDefault();\n                console.log(&quot;\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u307e\u3057\u305f&quot;)\n            }\n        }, false);\n    &lt;\/script&gt;\n&lt;\/body&gt;<\/code><\/pre><\/div>\n\n\n\n<p>\u5148\u307b\u3069\u306e\u30af\u30ea\u30c3\u30af\u30a4\u30d9\u30f3\u30c8\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u3001\u4e00\u90e8\u5909\u66f4\u3057\u3066\u8a18\u8ff0\u3057\u3066\u307f\u307e\u3057\u305f\u3002<br>\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u308b\u3068\u3053\u308d\u307e\u3067\u306f\u540c\u3058\u3067\u3059\u304c\u3001\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u8fd4\u308a\u5024\u306e\u5024\u306b\u3088\u3063\u3066\u51e6\u7406\u5185\u5bb9\u3092\u6761\u4ef6\u5206\u3051\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u30dc\u30bf\u30f3\u3092\u62bc\u4e0b\u3057\u305f\u5834\u5408\u306b\u30da\u30fc\u30b8\u79fb\u52d5\u304c\u4e2d\u65ad\u3055\u308c\u3001\u6307\u5b9a\u306e\u30ea\u30f3\u30af\u5148\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<br>\u30e1\u30bd\u30c3\u30c9\u306e\u8fd4\u308a\u5024\u3092\u6761\u4ef6\u3068\u3057\u3066\u4f7f\u7528\u3057\u3001true\u306e\u5834\u5408\u306b\u306f\u30b3\u30f3\u30bd\u30fc\u30eb\u8868\u793a\u306e\u307f\u3001false\u306e\u5834\u5408\u306f\u79fb\u52d5\u51e6\u7406\u3092\u4e2d\u65ad\u3057\u305f\u5f8c\u306b\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u30ed\u30b0\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u7279\u5b9a\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u691c\u77e5\u3057\u3066\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3057\u305f\u5f8c\u3001\u8fd4\u308a\u5024\u306e\u5024\u306b\u3088\u3063\u3066\u51e6\u7406\u3092\u6761\u4ef6\u5206\u3051\u3059\u308b\u306e\u304c\u4e3b\u306a confirm\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u3044\u65b9\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\">\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u306b\u306f\uff1f<\/h2>\n\n\n\n<p>confirm\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u7c21\u5358\u306b\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u4ee3\u308f\u308a\u306b\u5185\u5bb9\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u305f\u3081\u3001\u72ec\u81ea\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3057\u305f\u3044\u5834\u5408\u306b\u306f\u3001\u81ea\u524d\u3067\u30c0\u30a4\u30a2\u30ed\u30b0\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff08HTML\/JavaScript\uff09\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;body&gt;\n    &lt;button id=&quot;btn&quot;&gt;\u30b5\u30f3\u30d7\u30eb\u30dc\u30bf\u30f3&lt;\/button&gt;\n\n    &lt;dialog id=&quot;dialog&quot;&gt;\n        &lt;p&gt;\u30b5\u30f3\u30d7\u30eb\u30c0\u30a4\u30a2\u30ed\u30b0&lt;\/p&gt;\n        &lt;form method=&quot;dialog&quot;&gt;\n            &lt;button type=&quot;submit&quot; value=&quot;ok&quot;&gt;OK&lt;\/button&gt;\n            &lt;button type=&quot;submit&quot; value=&quot;cancel&quot;&gt;Cancel&lt;\/button&gt;\n        &lt;\/form&gt;\n    &lt;\/dialog&gt;\n\n    &lt;script type=&quot;text\/javascript&quot;&gt;\n        const btn = document.getElementById(&#39;btn&#39;);\n        const dialog = document.getElementById(&#39;dialog&#39;);\n\n        btn.addEventListener(&#39;click&#39;, function (event) {\n            dialog.showModal();\n        }, false);\n\n        dialog.addEventListener(&#39;close&#39;, function () {\n            if (dialog.returnValue == &quot;ok&quot;) {\n                console.log(&quot;ok\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u307e\u3057\u305f&quot;);\n            } else {\n                console.log(&quot;cancel\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u307e\u3057\u305f&quot;);\n            }\n        });\n    &lt;\/script&gt;\n&lt;\/body&gt;<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff08CSS\uff09\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>#dialog {\n    width: 200px;\n    border: 1px solid #aaa;\n    box-shadow: 5px 5px 10px #888;\n}<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm7.webp\" class=\"post-img\">\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm8.webp\" class=\"post-img\">\n\n\n\n<p>\u300c\uff08\u30c0\u30a4\u30a2\u30ed\u30b0\uff09\u300d\u8981\u7d20\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u72ec\u81ea\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br>\u307e\u305f\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u8868\u793a\u306b show\u30e1\u30bd\u30c3\u30c9\u3068 showModal\u30e1\u30bd\u30c3\u30c9\u306e\u3069\u3061\u3089\u3092\u4f7f\u7528\u3059\u308b\u304b\u306b\u3088\u3063\u3066\u3001\u901a\u5e38\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3068\u30e2\u30fc\u30c0\u30eb\u30c0\u30a4\u30a2\u30ed\u30b0\u306e\u3069\u3061\u3089\u3067\u8868\u793a\u3059\u308b\u304b\u3082\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>dialog\u8981\u7d20\u5185\u3067\u3001form\u8981\u7d20\u306e method\u5c5e\u6027\u306b dialog \u3068\u3044\u3046\u5024\u3092\u6307\u5b9a\u3057\u3066\u8a18\u8ff0\u3059\u308b\u3068\u3001submit\u6642\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u305b\u305a\u306b\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u9589\u3058\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308b\u4ed6\u3001value\u5c5e\u6027\u306b\u6307\u5b9a\u3057\u305f\u5024\u3092 \u300creturnValue\u300d \u3067\u53d7\u3051\u53d6\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>returnValue\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u5024\u306e\u9055\u3044\u306b\u3088\u3063\u3066\u3069\u306e\u30dc\u30bf\u30f3\u304c\u62bc\u4e0b\u3055\u308c\u305f\u304b\u3092\u5224\u65ad\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u305f\u3081\u3001\u30dc\u30bf\u30f3\u3054\u3068\u306b addEventListener\u30e1\u30bd\u30c3\u30c9\u3067\u51e6\u7406\u3092\u5206\u3051\u3066\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u7121\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__5\" class=\"wp-block-heading\">submit\u30a4\u30d9\u30f3\u30c8\u306e\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u4f5c\u308b<\/h2>\n\n\n\n<p>\u7d9a\u3044\u3066\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u5165\u529b\u5185\u5bb9\u3092\u9001\u4fe1\u3059\u308b\u969b\u306b\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br>\u8868\u793a\u65b9\u6cd5\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f form\u8981\u7d20\u306e onSubmit\u5c5e\u6027\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;body&gt;\n    &lt;form&gt;\n        &lt;p&gt;\n            &lt;label for=&quot;name&quot;&gt;\u540d\u524d\uff1a&lt;\/label&gt;\n            &lt;input id=&quot;name&quot; type=&quot;text&quot; name=&quot;name&quot; size=&quot;25&quot;&gt;\n            &lt;input id=&quot;btn&quot; name=&quot;btn&quot; type=&quot;submit&quot; value=&quot;\u9001\u4fe1&quot;&gt;\n        &lt;\/p&gt;\n    &lt;\/form&gt;\n\n    &lt;script type=&quot;text\/javascript&quot;&gt;\n        const btn = document.getElementById(&quot;btn&quot;);\n        btn.addEventListener(&#39;click&#39;, (event) =&gt; {\n            if (window.confirm(&quot;\u9001\u4fe1\u3057\u307e\u3059\u304b\uff1f&quot;)) {\n                alert(&quot;\u9001\u4fe1\u3057\u307e\u3057\u305f&quot;);\n            } else {\n                event.preventDefault();\n                alert(&quot;\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u307e\u3057\u305f&quot;);\n            }\n        });\n    &lt;\/script&gt;\n&lt;\/body&gt;\n<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm9.webp\" class=\"post-img\">\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm10.webp\" class=\"post-img\">\n\n\n\n<p>submit\u30dc\u30bf\u30f3\u3092\u62bc\u4e0b\u3059\u308b\u3068\u3001\u30af\u30ea\u30c3\u30af\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u706b\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067if\u6587\u306e\u6761\u4ef6\u5f0f\u306econfirm\u30e1\u30bd\u30c3\u30c9\u304c\u8a55\u4fa1\u3055\u308c\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<br>\u3053\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3078\u306e\u56de\u7b54\u7d50\u679c\u306b\u5fdc\u3058\u3066\u5165\u529b\u3057\u305f\u60c5\u5831\u304c\u9001\u4fe1\u3055\u308c\u308b\u304b\u3001preventDefault()\u30e1\u30bd\u30c3\u30c9\u3067\u9001\u4fe1\u304c\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u306f\u7c21\u5358\u306a\u51e6\u7406\u5185\u5bb9\u306e\u305f\u3081\u3001onSubmit\u5c5e\u6027\u3092\u4f7f\u7528\u3057\u3066\u3082\u52d5\u4f5c\u306b\u554f\u984c\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u8907\u6570\u306e\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u8ffd\u52a0\u3059\u308b\u306a\u3069\u306e\u67d4\u8edf\u6027\u306e\u9ad8\u3055\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u5408\u3092\u8003\u616e\u3057\u3066addEventListener\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u6700\u9069\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__6\" class=\"wp-block-heading\">\u305d\u306e\u4ed6\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u30e1\u30bd\u30c3\u30c9<\/h2>\n\n\n\n<p>JavaScript\u306b\u306f\u3001confirm\u30e1\u30bd\u30c3\u30c9\u306e\u4ed6\u306b\u3082\u3001\u69d8\u3005\u306a\u5f62\u5f0f\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br>\u6700\u5f8c\u306b\u3001\u305d\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3082\u7d39\u4ecb\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__6_1\" class=\"wp-block-heading\">alert\u30e1\u30bd\u30c3\u30c9\u3067\u8b66\u544a\u3092\u8868\u793a\u3059\u308b<\/h3>\n\n\n\n<p>1\u3064\u76ee\u306f\u3001alert\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<p>alert\u30e1\u30bd\u30c3\u30c9\u306f\u3001confirm\u30e1\u30bd\u30c3\u30c9\u306e\u3088\u3046\u306b\u30e6\u30fc\u30b6\u30fc\u306b\u9078\u629e\u3092\u5c0b\u306d\u308b\u305f\u3081\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3067\u306f\u306a\u304f\u3001\u4e3b\u306b\u8b66\u544a\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>window.alert(&quot;\u30a2\u30e9\u30fc\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8&quot;)<\/code><\/pre><\/div>\n\n\n\n<p>confirm\u30e1\u30bd\u30c3\u30c9\u3068\u540c\u69d8\u306b\u3001\u300cwindow.\u300d \u306f\u7701\u7565\u53ef\u80fd\u3067\u3059\u3002<br>\u8868\u793a\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm11.webp\" class=\"post-img\">\n\n\n\n<h3 id=\"outline__6_2\" class=\"wp-block-heading\">prompt\u30e1\u30bd\u30c3\u30c9\u3067\u30c6\u30ad\u30b9\u30c8\u5165\u529b\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b<\/h3>\n\n\n\n<p>2\u3064\u76ee\u306f\u3001prompt\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<br>prompt\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6587\u5b57\u5217\u306e\u5165\u529b\u3092\u30e6\u30fc\u30b6\u30fc\u306b\u4fc3\u3059\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u3059\u308b\u969b\u306e\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>let \u5909\u6570\u540d = prompt(&quot;\u30e1\u30c3\u30bb\u30fc\u30b8&quot;, &quot;\u521d\u671f\u5024&quot;);<\/code><\/pre><\/div>\n\n\n\n<p>\u5165\u529b\u3055\u308c\u305f\u5185\u5bb9\u306f\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306b\u5909\u6570\u306b\u683c\u7d0d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u5b9f\u969b\u306e\u52d5\u304d\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>let inputName = prompt(&quot;\u540d\u524d\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044&quot;, &quot;\u540d\u524d&quot;);\n    \nwindow.alert(`\u3042\u306a\u305f\u306e\u540d\u524d\u306f${inputName}\u3067\u3059`)<\/code><\/pre><\/div>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm12.webp\" class=\"post-img\">\n\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js-confirm13.webp\" class=\"post-img\">\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001prompt\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u304b\u3089\u5165\u529b\u3055\u308c\u305f\u5185\u5bb9\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u3067\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__7\" class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3044\u304b\u304c\u3067\u3057\u305f\u304b\uff1f<br>\u4eca\u56de\u306f\u3001confirm\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u5b9f\u969b\u306eWeb\u30b5\u30a4\u30c8\u3067\u3082\u3088\u304f\u898b\u304b\u3051\u308b\u3088\u3046\u306b\u3001\u78ba\u8a8d\u30c0\u30a4\u30a2\u30ed\u30b0\u304c\u8868\u793a\u3055\u308c\u308b\u30b1\u30fc\u30b9\u306f\u591a\u3005\u3042\u308a\u307e\u3059\u3002<br>\u6700\u5f8c\u306b\u7d39\u4ecb\u3057\u305f\u4ed6\u306e\u30e1\u30bd\u30c3\u30c9\u3068\u540c\u69d8\u306b\u3001\u5b9f\u969b\u306e\u958b\u767a\u306b\u304a\u3044\u3066\u3082 confirm\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u6a5f\u4f1a\u306f\u591a\u3044\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u3001\u4f7f\u3044\u65b9\u3092\u3057\u3063\u304b\u308a\u3068\u899a\u3048\u3066\u30de\u30b9\u30bf\u30fc\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n\n<h2 id=\"outline__8\" class=\"wp-block-heading\">\u95a2\u9023\u8a18\u4e8b<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/techmania.jp\/blog\/javascript0001\/\">JavaScript\u3068\u306f\uff1f\u521d\u5fc3\u8005\u5411\u3051\u306b\u3067\u304d\u308b\u3053\u3068\u3084\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9\u3092\u89e3\u8aac<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/techmania.jp\/blog\/javascript0002\/\">JavaScript\u304c\u521d\u5fc3\u8005\u306b\u304a\u30b9\u30b9\u30e1\u306a\u7406\u7531\u3092\u73fe\u5f79\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u304c\u89e3\u8aac<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/techmania.jp\/blog\/programming0012\/\">\u3010JavaScript\u5165\u9580\u3011\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u3066\u7fd2\u5f97<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/techmania.jp\/blog\/javascript-getelementbyid\/\">\u3010JavaScript\u5165\u9580\u3011getElementById\u306e\u4f7f\u3044\u65b9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u5fb9\u5e95\u89e3\u8aac<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/techmania.jp\/blog\/javascript-foreach\/\">\u3010JavaScript\u5165\u9580\u3011forEach\u30e1\u30bd\u30c3\u30c9\u3067\u914d\u5217\u306e\u5404\u8981\u7d20\u306b\u51e6\u7406\u3092\u7e70\u308a\u8fd4\u3059\uff01\u4f7f\u3044\u65b9\u304b\u3089\u6ce8\u610f\u70b9\u307e\u3067\u5fb9\u5e95\u89e3\u8aac<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"outline__9\" class=\"wp-block-heading\">JavaScript\u306e\u52c9\u5f37\u65b9\u6cd5\u306f\uff1f<\/h2>\n\n\n<p>\u66f8\u7c4d\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u5b66\u7fd2\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6628\u4eca\u3067\u306f\u3001YouTube\u306a\u3069\u306e\u52d5\u753b\u30b5\u30a4\u30c8\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30b5\u30a4\u30c8\u306a\u3069\u3082\u5145\u5b9f\u3057\u3066\u3044\u3066\u591a\u304f\u306e\u60c5\u5831\u304c\u624b\u306b\u5165\u308a\u307e\u3059\u3002<br \/>\u305d\u3057\u3066\u3001\u3088\u308a\u52b9\u7387\u7684\u306b\u77e5\u8b58\u30fb\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3059\u308b\u306b\u306f\u3001\u77e5\u8b58\u3092\u3064\u3051\u306a\u304c\u3089\u5b9f\u969b\u306b\u624b\u3092\u52d5\u304b\u3057\u3066\u307f\u308b\u306a\u3069\u3001\u30a4\u30f3\u30d7\u30c3\u30c8\u3068\u30a2\u30a6\u30c8\u30d7\u30c3\u30c8\u3092\u7e70\u308a\u8fd4\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u72ec\u5b66\u306e\u5834\u5408\u306f\u3001\u6709\u8b58\u8005\u306b\u8cea\u554f\u304c\u3067\u304d\u305f\u308a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u3082\u3089\u3048\u308b\u3088\u3046\u306a\u74b0\u5883\u304c\u3042\u308b\u3068\u3001\u7406\u89e3\u5ea6\u304c\u6df1\u307e\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u305f\u3060\u3001JavaScript\u306b\u9650\u3089\u305a\u3001IT\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u308b\u969b\u3001\u3069\u3046\u3057\u3066\u3082\u8ab2\u984c\u306b\u3076\u3064\u304b\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u306f\u3042\u308a\u307e\u3059\u3088\u306d\u3002\u7279\u306b\u72ec\u5b66\u3060\u3068\u3001\u308f\u304b\u3089\u306a\u3044\u90e8\u5206\u3092\u30d7\u30ed\u306b\u8cea\u554f\u3067\u304d\u308b\u6a5f\u4f1a\u3092\u78ba\u4fdd\u3057\u306b\u304f\u304f\u3001\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u304c\u7d9a\u304d\u306b\u304f\u3044\u3068\u3044\u3046\u5074\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u72ec\u5b66\u3067\u30e2\u30c1\u30d9\u30fc\u30b7\u30e7\u30f3\u3092\u7dad\u6301\u3059\u308b\u81ea\u4fe1\u304c\u306a\u3044\u4eba\u306b\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3068\u3044\u3046\u624b\u3082\u3042\u308a\u307e\u3059\u3002\u8cbb\u7528\u306f\u639b\u304b\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u5206\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u3084\u3059\u3044\u3067\u3059\u3002\u3057\u3063\u304b\u308a\u3068\u77e5\u8b58\u30fb\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3057\u3066\u5b9f\u8df5\u306b\u6d3b\u304b\u3057\u305f\u3044\u3068\u3044\u3046\u4eba\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<p><span class=\"markerYellow\"><strong>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u306a\u3089\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u304c\u304a\u3059\u3059\u3081\uff01<\/strong><\/span><\/p>\n\n\n<img decoding=\"async\" src=\"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/yuudou.png\" class=\"post-img\">\n\n\n<p>IT\u30b9\u30ad\u30eb\u9700\u8981\u306e\u9ad8\u307e\u308a\u3068\u3068\u3082\u306b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3082\u5897\u3048\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3069\u306e\u30b9\u30af\u30fc\u30eb\u306b\u901a\u3046\u3079\u304d\u304b\u8ff7\u3063\u3066\u3057\u307e\u3046\u4eba\u3082\u3044\u308b\u3067\u3057\u3087\u3046\u3002\u305d\u3093\u306a\u65b9\u306b\u306f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\uff01\u3053\u308c\u307e\u3067\u591a\u304f\u306eIT\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u80b2\u6210\u30fb\u8f29\u51fa\u3057\u3066\u304d\u305f\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u3092\u958b\u8b1b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"bgBox\">\n<p><strong>\uff1c\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306e\u7279\u5fb4\uff1e<\/strong><br \/><strong>\u30fb\u305f\u3057\u304b\u306a\u80b2\u6210\u5b9f\u7e3e\u3068\u89aa\u8eab\u306a\u6559\u80b2\u3000\uff5e\u30bb\u30ab\u30f3\u30c9\u30ad\u30e3\u30ea\u30a2\u3092\u5168\u529b\u652f\u63f4\uff5e<\/strong><br \/><strong>\u30fb\u8b1b\u5e2b\u304c\u73fe\u5f79\u30a8\u30f3\u30b8\u30cb\u30a2\u3000\uff5e\u201c\u672c\u5f53\u201d\u306e\u958b\u767a\u30ce\u30a6\u30cf\u30a6\u3092\u76f4\u306b\u5b66\u3079\u308b\uff5e<\/strong><br \/><strong>\u30fb\u5c02\u5c5e\u8b1b\u5e2b\u304c\u5b66\u7fd2\u3092\u5fb9\u5e95\u30b5\u30dd\u30fc\u30c8\u3000\uff5e\u300c\u308f\u304b\u3089\u306a\u3044\u300d\u3092\u5fb9\u5e95\u89e3\u6c7a\uff5e<\/strong><br \/><strong>\u30fb\u5b9f\u52d9\u30d9\u30fc\u30b9\u3067\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3000\uff5e\u5b9f\u8df5\u7684\u306a\u51dd\u7e2e\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0\uff5e<\/strong><\/p>\n<\/div>\n<p>\u3053\u306e\u3088\u3046\u306a\u7279\u5fb4\u3092\u6301\u3064\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306fIT\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b9\u30bf\u30fc\u30c8\u30e9\u30a4\u30f3\u3068\u3057\u3066\u6700\u9069\u3067\u3059\u3002<br \/>\u8a71\u3092\u805e\u304d\u305f\u3044\u30fb\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u3068\u3044\u3046\u65b9\u306f<a href=\"https:\/\/techmania.jp\/lp\/2\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u304b\u3089\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"excerpt":{"rendered":"JavaScript\u306b\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u8b66\u544a\u3092\u51fa\u3057\u305f\u308a\u3001\u9078\u629e\u3092\u4fc3\u3057\u305f\u308a\u3059\u308b\u969b\u306b\u4f7f\u7528\u3067\u304d\u308b\u3001\u30c0\u30a4\u30a2\u30ed\u30b0\u8868\u793a\u7528\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u3044\u304f\u3064\u304b\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u4eca\u56de\u306f\u3001\u305d\u306e\u4e2d\u306e\uff11\u3064\u3067\u3042\u308b confirm \u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3001\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u57fa\u672c\u69cb\u6587\u304b\u3089\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b\u307e\u3067\u5408\u308f\u305b\u3066\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002 JavaScript\u306econfirm\u30e1\u30bd\u30c3\u30c9\u3068\u306f\uff1f confirm\u30e1\u30bd\u30c3 [&hellip;]","protected":false},"author":11,"featured_media":9707,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/web-img.rensa.jp.net\/rensa\/images\/techmania\/thumbnail\/images\/js_confirm.webp","fifu_image_alt":"\u3010JavaScript\u5165\u9580\u3011confirm\u3067\u300c\u306f\u3044\/\u3044\u3044\u3048\u300d\u306e\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u8868\u793a\u3059\u308b","footnotes":""},"categories":[15],"tags":[],"class_list":["post-9704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/9704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/comments?post=9704"}],"version-history":[{"count":3,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/9704\/revisions"}],"predecessor-version":[{"id":9708,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/posts\/9704\/revisions\/9708"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/media\/9707"}],"wp:attachment":[{"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/media?parent=9704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/categories?post=9704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techmania.jp\/blog\/wp-json\/wp\/v2\/tags?post=9704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}