{"id":14251,"date":"2019-06-03T15:40:46","date_gmt":"2019-06-03T06:40:46","guid":{"rendered":"https:\/\/www.agent-grow.com\/self20percent\/?p=14251"},"modified":"2019-06-03T15:41:21","modified_gmt":"2019-06-03T06:41:21","slug":"js-without-libs-addeventlistener","status":"publish","type":"post","link":"https:\/\/www.agent-grow.com\/self20percent\/2019\/06\/03\/js-without-libs-addeventlistener\/","title":{"rendered":"\u3010JavaScript \u30fb\u30e9\u30a4\u30d6\u30e9\u30ea\u306a\u3057\u3011\u30e6\u30fc\u30b6\u30fc\u306e\u5165\u529b\u304b\u3089\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u304b\u305d\u3046"},"content":{"rendered":"<p>javascript \u66f8\u3044\u3066\u307e\u3059\u304b\uff1f<\/p>\n<p>\u4eca\u307e\u3067\u3044\u308d\u3044\u308d\u306a JavaScript \u8a18\u4e8b\u3092\u66f8\u3044\u3066\u3044\u307e\u3057\u305f\u304c\u3001<br \/>\n\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u7d39\u4ecb\u3067\u306a\u3044\u9650\u308a\u3001\u79c1\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u4f7f\u7528\u3057\u306a\u3044\u3053\u3068\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3082\u3061\u308d\u3093\u3001jQuery \u306a\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u3068\u3066\u3082\u4fbf\u5229\u3060\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u305f\u3060\u3001\u79c1\u500b\u4eba\u3068\u3057\u3066\u306f\u3001\u3084\u306f\u308a JavaScript \u305d\u306e\u3082\u306e\u306e\u6319\u52d5\u3092\u77e5\u308b\u3053\u3068\u304c\u3001<br \/>\n\u7d50\u679c\u7684\u306b\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u306a\u3069\u306e\u52c9\u5f37\u3092\u3057\u305f\u969b\u306e\u7406\u89e3\u3082\u6df1\u307e\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u3002<\/p>\n<p>\u3068\u3044\u3046\u3068\u3053\u308d\u3067\u3001\u7d20\u306e JavaScript \u3092\u66f8\u304f\u3053\u3068\u3092\u5927\u5207\u306b\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u306d\u3002<\/p>\n<p>\u3067\u3002\u4eca\u56de\u306f\u3002<\/p>\n<p>\u305f\u307e\u306b\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5165\u308c\u306a\u3044\u74b0\u5883\u3067\u3001\u3088\u304f\u4f7f\u3046\u64cd\u4f5c\u3092<br \/>\n\u304a\u3055\u3089\u3044\u3057\u3066\u307f\u3088\u3046\u304b\u306a\u3068\u601d\u3063\u305f\u6b21\u7b2c\u3067\u3059\u3002<\/p>\n<h1>JavaScript \u306f\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u304c\u57fa\u672c<\/h1>\n<p>\u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u524d\u306b\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u66f8\u304d\u65b9\u306b\u306f\u3044\u308d\u3044\u308d\u306a\u30d1\u30bf\u30fc\u30f3\u304c\u3042\u308a\u307e\u3059\u304c\u3001<br \/>\nJavaScript \u3092\u66f8\u304f\u3068\u304d\u306b\u306f\u300c\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u300d\u3067\u8003\u3048\u308b\u306e\u304c\u57fa\u672c\u3067\u3059\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u3068\u306f\u3001<br \/>\n\u300c\u30e6\u30fc\u30b6\u30fc\u304c\u5165\u529b\u3057\u305f\u3053\u3068\u3084\u3001\u8a2d\u5b9a\u3057\u305f\u30bf\u30a4\u30de\u30fc\u306a\u3069\uff08\u3064\u307e\u308a\u30a4\u30d9\u30f3\u30c8\uff09\u3092\u304d\u3063\u304b\u3051\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u304b\u3059\u300d<br \/>\n\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001\u5b9f\u884c\u3055\u308c\u305f\u3068\u304d\u306b\u4e0a\u304b\u3089\u9806\u306b\u3001\u4e00\u5ea6\u3060\u3051\u5b9f\u884c\u3055\u308c\u3001\u6700\u5f8c\u306b\u5230\u9054\u3057\u305f\u3089\u7d42\u4e86\u3059\u308b\u306e\u304c\u57fa\u672c\u3067\u3059\u3002<br \/>\n\u5b66\u6821\u3067 C \u8a00\u8a9e\u306a\u3069\u3092\u5b66\u3070\u308c\u305f\u65b9\u3067\u3042\u308c\u3070\u3001\u5927\u4f53\u305d\u3093\u306a\u611f\u3058\u3060\u3063\u305f\u3053\u3068\u3092\u601d\u3044\u3060\u3057\u3066\u3082\u3089\u3048\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u3082\u3061\u308d\u3093\u3001JavaScript \u3082\u3001\u307b\u307c\u305d\u3046\u306a\u306e\u3067\u3059\u304c\u3001<br \/>\nJavaScript \u306f\u30d6\u30e9\u30a6\u30b6\u4e0a\u3067\u5b9f\u884c\u3055\u308c\u308b\u3068\u304d\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u826f\u3044\u611f\u3058\u306b\u3001\u5b8c\u5168\u306b\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u7d42\u4e86\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3068\u3044\u3046\u306e\u3082\u3001JavaScript \u3067\u3084\u308a\u305f\u3044\u3053\u3068\u306f\u3001<br \/>\n\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3068\u304d\u306b\u30da\u30fc\u30b8\u306e\u898b\u305f\u76ee\u3092\u5909\u3048\u305f\u3044\u3068\u304b\u3001<br \/>\n\u6587\u5b57\u304c\u5165\u529b\u3055\u308c\u305f\u3068\u304d\u306b\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3057\u305f\u3044\u3068\u304b\u3001<br \/>\n\u306a\u306b\u304b\u3057\u3089\u306e\u304d\u3063\u304b\u3051\u304b\u3089\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u304b\u3057\u305f\u3044\u3068\u3044\u3046\u3053\u3068\u304c\u307b\u3068\u3093\u3069\u306a\u306e\u3067\u3059\u3088\u306d\u3002<\/p>\n<p>\u305d\u3046\u3044\u3046\u3053\u3068\u3067\u3001JavaScript \u3092\u30d6\u30e9\u30a6\u30b6\u3067\u4f7f\u3046\u6642\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u81ea\u4f53\u304c\u5b9f\u884c\u3055\u308c\u308b\u306e\u306f\u30da\u30fc\u30b8\u304c\u958b\u304b\u308c\u305f\u6642\u3067\u3059\u304c\u3001<br \/>\n\u305d\u306e\u6642\u306b\u306f\u300c\u3053\u3046\u3044\u3046\u52d5\u4f5c\u304c\u3055\u308c\u305f\u3068\u304d\u306b\u306f\u3001\u3053\u3046\u3044\u3046\u52d5\u304d\u3092\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u3044\u3046\u60c5\u5831\u3092\u767b\u9332\u3060\u3051\u3057\u3066\u304a\u3044\u3066\u3001<br \/>\n\u5f8c\u306f\u30d6\u30e9\u30a6\u30b6\u5074\u304c\u305d\u306e\u52d5\u304d\u3092\u76e3\u8996\u3057\u3066\u304a\u3044\u3066\u304f\u308c\u308b\u3001\u3068\u3044\u3046\u6a5f\u80fd\u304c\u3042\u308b\u308f\u3051\u3067\u3059\u306d\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"14253\" data-permalink=\"https:\/\/www.agent-grow.com\/self20percent\/2019\/06\/03\/js-without-libs-addeventlistener\/%e3%82%a2%e3%83%bc%e3%83%88%e3%83%9c%e3%83%bc%e3%83%89-1-60\/\" data-orig-file=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-2.png\" data-orig-size=\"779,769\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"\u30a2\u30fc\u30c8\u30dc\u30fc\u30c9 1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-2.png\" src=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-2-300x296.png\" alt=\"\" width=\"300\" height=\"296\" class=\"alignnone size-medium wp-image-14253\" srcset=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-2-300x296.png 300w, https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-2-768x758.png 768w, https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-2-60x60.png 60w, https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-2.png 779w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h1>\u5b9f\u969b\u306b\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u3092\u304d\u3063\u304b\u3051\u306b\u52d5\u4f5c\u3092\u8d77\u3053\u3055\u305b\u3066\u307f\u308b<\/h1>\n<p>\u3055\u3066\u3001JavaScript \u306f\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u3053\u3068\u304c\u5206\u304b\u3063\u305f\u3068\u3053\u308d\u3067\u3001<br \/>\n\u5b9f\u969b\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u307e\u305a\u306f\u6bd4\u8f03\u5bfe\u8c61\u3068\u3057\u3066\u3001\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u3067\u306a\u3044\u66f8\u304d\u65b9\u306b\u3057\u305f\u5834\u5408<\/h2>\n<p>\u307e\u305a\u306f\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u306e\u8a2d\u5b9a\u3092\u5165\u308c\u306a\u3044\u3067\u6319\u52d5\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4eca\u56de\u306f\u308f\u304b\u308a\u3084\u3059\u304f\u3001\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>\u5358\u7d14\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3055\u305b\u308b\u306b\u306f<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nalert(\u2019\u8868\u793a\u3057\u305f\u3044\u6587\u5b57\u2019);\n<\/pre>\n<p>\u3053\u308c\u3060\u3051\u3067 OK\u3002<\/p>\n<p>\u5b9f\u969b\u306b\u306f\u30d6\u30e9\u30a6\u30b6\u3067\u52d5\u304b\u3059\u306e\u3067\u3001html \u304b\u3089\u8aad\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u306d\u3002<br \/>\n\u4eca\u56de\u306f\u30b3\u30fc\u30c9\u91cf\u3082\u5c11\u306a\u3044\u306e\u3067\u3001 <code>script<\/code> \u30bf\u30b0\u306b\u76f4\u66f8\u304d\u3002<br \/>\n\u3042\u3068\u3001\u5f8c\u3067\u4f7f\u3046\u306e\u3067\u30dc\u30bf\u30f3\u3082\u304a\u3044\u3066\u304a\u304d\u307e\u3057\u305f\u3002<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\uff1chtml\uff1e\n\uff1chead\uff1e\n  \uff1cmeta charset=\u201dutf-8\u201d\uff1e\n  \uff1ctitle\uff1e\u30c6\u30b9\u30c8\uff1c\/title\uff1e\n\uff1c\/head\uff1e\n\uff1cbody\uff1e\n  \uff1cbutton\uff1e\u30dc\u30bf\u30f3\uff1c\/button\uff1e\n  \uff1cscript\uff1e\n    alert(\u201d\u30a2\u30e9\u30fc\u30c8\u3060\u3088\uff01\u201d);\n  \uff1c\/script\uff1e\n\uff1c\/body\uff1e\n\uff1c\/html\uff1e\n<\/pre>\n<p>\u5b9f\u969b\u306b\u3053\u306e\u30da\u30fc\u30b8\u3092\u30d6\u30e9\u30a6\u30b6\u3067\u958b\u3044\u3066\u307f\u308b\u3068\u2026<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"14254\" data-permalink=\"https:\/\/www.agent-grow.com\/self20percent\/2019\/06\/03\/js-without-libs-addeventlistener\/anim-10\/\" data-orig-file=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/anim-2.gif\" data-orig-size=\"494,210\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"anim\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/anim-2.gif\" src=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/anim-2-300x128.gif\" alt=\"\" width=\"300\" height=\"128\" class=\"alignnone size-medium wp-image-14254\" \/><\/p>\n<p>\u30da\u30fc\u30b8\u66f4\u65b0\u6642\uff08\u3064\u307e\u308a\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305f\u3068\u304d\uff09\u306b\u3059\u3050\u3001 JavaScript \u304c\u5b9f\u884c\u3055\u308c\u3066<br \/>\n\u30a2\u30e9\u30fc\u30c8\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n<h2>\u300c\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u305f\u300d\u30a4\u30d9\u30f3\u30c8\u3067\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3059\u308b<\/h2>\n<p>\u6b21\u306b\u3001\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u305f\u30a4\u30d9\u30f3\u30c8\u3092\u691c\u77e5\u3057\u3066\u3001\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3055\u305b\u308b\u306e\u304c\u3053\u3061\u3089\u3002<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\uff1chtml\uff1e\n\uff1chead\uff1e\n  \uff1cmeta charset=\u201dutf-8\u201d\uff1e\n  \uff1ctitle\uff1e\u30c6\u30b9\u30c8\uff1c\/title\uff1e\n\uff1c\/head\uff1e\n\uff1cbody\uff1e\n  \uff1cbutton id=\u2019alert-button\u2019\uff1e\u30dc\u30bf\u30f3\uff1c\/button\uff1e\n  \uff1cscript\uff1e\n    const btn = document.getElementById(\u2019alert-button\u2019);\n    btn.addEventListener(\u2019click\u2019, function() {\n      alert(\u201d\u30a2\u30e9\u30fc\u30c8\u3060\u3088\uff01\u201d);\n    });\n  \uff1c\/script\uff1e\n\uff1c\/body\uff1e\n\uff1c\/html\uff1e\n<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"14255\" data-permalink=\"https:\/\/www.agent-grow.com\/self20percent\/2019\/06\/03\/js-without-libs-addeventlistener\/anim-11\/\" data-orig-file=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/anim-3.gif\" data-orig-size=\"494,210\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"anim\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/anim-3.gif\" src=\"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/anim-3-300x128.gif\" alt=\"\" width=\"300\" height=\"128\" class=\"alignnone size-medium wp-image-14255\" \/><\/p>\n<p>\u6319\u52d5\u3068\u3057\u3066\u306f\u3001\u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u3093\u3060\u969b\u306b\u306f\u7279\u306b JavaScript \u304c\u52d5\u3044\u3066\u3044\u308b\u611f\u3058\u304c\u3057\u307e\u305b\u3093\u304c\u3001<br \/>\n\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u307f\u308b\u3068\u78ba\u304b\u306b\u30a2\u30e9\u30fc\u30c8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u306d\u3002<\/p>\n<p>\u4eca\u56de\u306f\u30da\u30fc\u30b8\u3092\u8aad\u307f\u8fbc\u3093\u3067 JavaScript \u304c\u5b9f\u884c\u3055\u308c\u305f\u3068\u304d\u306b\u3001<br \/>\n\u300c\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u305f\u3089\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u306d\uff01\u300d\u3068\u3044\u3046\u547d\u4ee4\u3092\u8a2d\u5b9a\u3059\u308b\u3060\u3051\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305f\u3060\u3051\u306e\u6642\u306b\u306f\u4f55\u3082\u8d77\u3053\u3063\u3066\u3044\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u3066\u3001<br \/>\n\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u307f\u308b\u3068\u30a2\u30e9\u30fc\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002<\/p>\n<h2>\u30b3\u30fc\u30c9\u89e3\u8aac<\/h2>\n<p>\u3055\u3066\u3001\u5148\u307b\u3069\u306e\u30b3\u30fc\u30c9\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u304b\u3002<br \/>\n\u4e0a\u306e\u65b9\u306f\u5358\u7d14\u306b html \u306a\u306e\u3067\u3053\u306e\u8fba\u306f\u98db\u3070\u3057\u3066\u2026<\/p>\n<h2>7 \u884c\u76ee<\/h2>\n<p>\u307e\u305a\u306f\u3053\u3053<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\uff1cbutton id=\u2019alert-button\u2019\uff1e\u30dc\u30bf\u30f3\uff1c\/button\uff1e\n<\/pre>\n<p>script \u30bf\u30b0\u306b\u5165\u308b\u524d\u306b\u3001\u30dc\u30bf\u30f3\u306b\u3064\u3044\u3066\u898b\u3066\u304a\u304d\u307e\u3059\u3002<br \/>\n\u30dc\u30bf\u30f3\u306b <code>id<\/code> \u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n<p>\u3053\u308c\u306f\u5f8c\u3067\u3001\u300c\u3053\u306e\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u305f\u3089\u2026\u300d\u3068\u3044\u3046\u547d\u4ee4\u3092\u66f8\u304d\u305f\u3044\u306e\u3067\u3001<br \/>\n\u30dc\u30bf\u30f3\u306b\u540d\u524d\u3092\u3064\u3051\u3066\u3044\u308b\u3068\u3044\u3046\u8a8d\u8b58\u3067\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h2>9 \u884c\u76ee<\/h2>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nconst btn = document.getElementById(\u2019alert-button\u2019);\n<\/pre>\n<p><code>const<\/code> \u306f\u6700\u8fd1\u306e\u5b9a\u6570\u306e\u5b9a\u7fa9\u306e\u4ed5\u65b9\u3067\u3059\u306d\u3002<br \/>\n\u3058\u3063\u304f\u308a\u898b\u308b\u3079\u304d\u306f\u53f3\u5074\u3002<\/p>\n<p><code>document<\/code> \u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306b\u8aad\u307f\u8fbc\u307e\u308c\u305f html \u3092\u89e3\u6790\u3057\u305f Web \u30da\u30fc\u30b8\u304c\u5165\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u6700\u521d\u306e <code>\uff1chtml\uff1e<\/code> \u8981\u7d20\u304b\u3089\u5168\u90e8\u306e\u5185\u5bb9\u3092\u3001\u3053\u3053\u304b\u3089\u6301\u3063\u3066\u304f\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3067\u3001 <code>getElementById<\/code> \u306f\u8aad\u3093\u3060\u3068\u304a\u308a\u3001<br \/>\nid \u3092\u4f7f\u3063\u3066\u8981\u7d20\u3092\u63a2\u3057\u3066\u304f\u308b\u547d\u4ee4\u3067\u3059\u3002<\/p>\n<p><code>\uff1chtml\uff1e<\/code> \u8981\u7d20\u4ee5\u4e0b\u3067 <code>alert-button<\/code> \u306e id \u304c\u632f\u3089\u308c\u3066\u3044\u308b\u8981\u7d20\u3068\u3044\u3048\u3070\u3001<br \/>\n\u5148\u307b\u3069\u306e\u30dc\u30bf\u30f3\u3067\u3059\u3088\u306d\u3002<br \/>\n\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u3053\u308c\u3067\u30dc\u30bf\u30f3\u3092\u53d6\u5f97\u3057\u3066\u304f\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3067\u3001\u53d6\u5f97\u3057\u305f\u30dc\u30bf\u30f3\u306e\u8981\u7d20\u306f <code>btn<\/code> \u5b9a\u6570\u306b\u683c\u7d0d\u3057\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n<h2>10 ~ 12 \u884c\u76ee<\/h2>\n<p>\u3053\u3053\u304c\u4eca\u56de\u306e\u30ad\u30e2\u3067\u3059\u306d\u3002<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nbtn.addEventListener(\u2019click\u2019, function() {\n  alert(\u201d\u30a2\u30e9\u30fc\u30c8\u3060\u3088\uff01\u201d);\n});\n<\/pre>\n<p>\u5148\u307b\u3069\u53d6\u5f97\u3057\u305f\u30dc\u30bf\u30f3\u8981\u7d20\u306b\u5bfe\u3057\u3066\u3001 <code>addEventListener<\/code> \u3068\u3044\u3046\u547d\u4ee4\u3092\u3064\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u304c\u3001\u300c\u3053\u306e\u8981\u7d20\u3092\u76e3\u8996\u3057\u3066\u3001\u6307\u5b9a\u3057\u305f\u72b6\u614b\u306b\u306a\u3063\u305f\u3068\u304d\u3001\u25cb\u25cb\u3092\u3057\u3066\u306d\u300d\u3068\u3044\u3046\u3001<br \/>\n\u30a4\u30d9\u30f3\u30c8\u3092\u76e3\u8996\u3055\u305b\u308b\u305f\u3081\u306e\u547d\u4ee4\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>addEventListener \u306b\u306f\u5f15\u6570\u3092 2 \u3064\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n(\u30db\u30f3\u30c8\u306f\u3082\u3063\u3068\u6e21\u305b\u308b\u306e\u3067\u3059\u304c\u3001\u3084\u3084\u3053\u3057\u304f\u306a\u308b\u306e\u3067\u8208\u5473\u304c\u3042\u308b\u4eba\u306f\u8abf\u3079\u3066\u306d)<\/p>\n<p>\u4e00\u3064\u3081\u304c\u76e3\u8996\u3059\u308b\u52d5\u4f5c\u3002<\/p>\n<p>\u4eca\u56de\u306f\u30dc\u30bf\u30f3\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3068\u304d\u306a\u306e\u3067\u3001click \u3068\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u5f8c\u306f\u3001\u30c6\u30ad\u30b9\u30c8\u5165\u529b\u3067\u304d\u308b\u3068\u3053\u308d\u3067\u3042\u308c\u3070\u3001\u5185\u5bb9\u304c\u5909\u66f4\u3055\u308c\u305f\u3068\u304d\u306e change \u3068\u304b\u3001\u8272\u3005\u3042\u308a\u307e\u3059\u3088\u3002<\/p>\n<p>\u3067\u3001\u4e8c\u3064\u76ee\u304c\u3001\u30a4\u30d9\u30f3\u30c8\u3092\u691c\u77e5\u3057\u305f\u3068\u304d\u306e\u52d5\u304d\u3002<br \/>\n\u3053\u3053\u3067\u306f<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nfunction() {\n  alert(\u201d\u30a2\u30e9\u30fc\u30c8\u3060\u3088\uff01\u201d);\n}\n<\/pre>\n<p>\u3068\u3044\u3046\u95a2\u6570\u3092\u6e21\u3057\u3066\u3044\u308b\u306e\u3067\u3001<br \/>\n\u30a4\u30d9\u30f3\u30c8\u304c\u691c\u77e5\u3055\u308c\u305f\u3068\u304d\u306b\u3053\u306e\u95a2\u6570\u304c\u5b9f\u884c\u3055\u308c\u3066\u3001<br \/>\n\u5b9f\u969b\u306b\u30a2\u30e9\u30fc\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3001\u3068\u3044\u3046\u6d41\u308c\u306b\u306a\u3063\u3066\u3044\u305f\u306e\u3067\u3059\u306d\u3002<\/p>\n<p>\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u6674\u308c\u3066\u30dc\u30bf\u30f3\u304c\u62bc\u3055\u308c\u305f\u3068\u304d\u306b\u30a2\u30e9\u30fc\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3001\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h1>\u307e\u3068\u3081<\/h1>\n<p>\u4eca\u56de\u306e\u3053\u306e\u5185\u5bb9\u306f\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u304c\u3042\u3063\u305f\u5834\u5408\u306b\u52d5\u4f5c\u3092\u8d77\u3053\u3055\u305b\u308b\u3001\u7b2c\u4e00\u6b69\u306e\u5185\u5bb9\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u3001\u3053\u306e\u3042\u305f\u308a\u306e\u3053\u3068\u306f\u6b63\u76f4\u77e5\u3089\u306a\u3044\u3067\u3082\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u304b\u3051\u307e\u3059\u304c\u2026<\/p>\n<p>JavaScript \u306e\u8003\u3048\u65b9\u3092\u8eab\u306b\u3064\u3051\u3001\u3088\u308a\u52b9\u7387\u7684\u306a\u30b3\u30fc\u30c9\u3092\u304b\u3051\u308b\u3088\u3046\u306b\u306a\u308b\u305f\u3081\u306b\u3082\u3001<br \/>\n\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u3069\u306e\u3088\u3046\u306a\u3053\u3068\u3092\u5185\u90e8\u3067\u3084\u3063\u3066\u3044\u308b\u306e\u304b\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u5185\u5bb9\u3082\u7c21\u5358\u306b\u3067\u3082\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>javascript \u66f8\u3044\u3066\u307e\u3059\u304b\uff1f \u4eca\u307e\u3067\u3044\u308d\u3044\u308d\u306a JavaScript \u8a18\u4e8b\u3092\u66f8\u3044\u3066\u3044\u307e\u3057\u305f\u304c\u3001 \u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u7d39\u4ecb\u3067\u306a\u3044\u9650\u308a\u3001\u79c1\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u4f7f\u7528\u3057\u306a\u3044\u3053\u3068\u306b\u3057\u3066\u3044\u307e\u3059\u3002 \u3082\u3061\u308d\u3093\u3001jQuery \u306a\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u306f [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":14258,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[10],"tags":[45],"class_list":["post-14251","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-javascript"],"jetpack_featured_media_url":"https:\/\/www.agent-grow.com\/self20percent\/wp-content\/uploads\/2019\/05\/850c7612116999490846136e772ab7fd-3.png","jetpack_shortlink":"https:\/\/wp.me\/p7Bq4F-3HR","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/posts\/14251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/comments?post=14251"}],"version-history":[{"count":0,"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/posts\/14251\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/media\/14258"}],"wp:attachment":[{"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/media?parent=14251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/categories?post=14251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.agent-grow.com\/self20percent\/wp-json\/wp\/v2\/tags?post=14251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}