{"id":61631,"date":"2018-07-02T09:34:45","date_gmt":"2018-07-02T00:34:45","guid":{"rendered":"https:\/\/www.sejuku.net\/blog\/?p=61631"},"modified":"2024-05-06T11:49:12","modified_gmt":"2024-05-06T02:49:12","slug":"%e3%80%90javascript%e5%85%a5%e9%96%80%e3%80%91%e3%82%88%e3%81%8f%e8%a6%8b%e3%81%8b%e3%81%91%e3%82%8bon%e2%97%8b%e2%97%8b%e3%81%a3%e3%81%a6%e4%bd%95%ef%bc%9f%e3%82%a4%e3%83%99%e3%83%b3%e3%83%88","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/61631","title":{"rendered":"\u3010JavaScript\u5165\u9580\u3011\u521d\u5fc3\u8005\u3067\u3082\u5206\u304b\u308b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u4f5c\u308a\u65b9\u307e\u3068\u3081\uff01"},"content":{"rendered":"<p>\u4eca\u56de\u306f\u3001JavaScript\u306b\u304a\u3051\u308b<span style=\"color: #54a870;\"><strong>\u30a4\u30d9\u30f3\u30c8\u51e6\u7406<\/strong><\/span>\u306b\u3064\u3044\u3066\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3092\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p><span style=\"color: #f75959;\"><strong>\u300c\u305d\u3082\u305d\u3082\u30a4\u30d9\u30f3\u30c8\u3001\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3063\u3066\u4f55\uff1f\u300d<br \/>\n\u300c\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u4f5c\u308a\u65b9\u3092\u77e5\u308a\u305f\u3044\u300d<br \/>\n\u300c\u30dc\u30bf\u30f3\u306b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u8ffd\u52a0\u3057\u305f\u3044\u300d<\/strong><\/span><\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u5185\u5bb9\u3082\u542b\u3081\u3066\u3001\u672c\u8a18\u4e8b\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u69cb\u6210\u3067\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\uff01<\/p>\n<div style=\"padding: 10px 5px 10px 20px; margin-bottom: 20px; border: 5px solid #ffe4e2;\">\n\u3010\u57fa\u790e\u3011\u300c\u30a4\u30d9\u30f3\u30c8\u300d\u3068\u306f\uff1f<br \/>\n\u3010\u57fa\u790e\u3011\u300c\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u300d\u306e\u4f7f\u3044\u65b9<br \/>\n\u3010\u5b9f\u8df5\u3011\u30dc\u30bf\u30f3\u30a4\u30d9\u30f3\u30c8\u306e\u4f5c\u308a\u65b9\n<\/div>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u3001\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u3057\u3063\u304b\u308a\u5b66\u7fd2\u3057\u3066\u30b9\u30ad\u30eb\u30a2\u30c3\u30d7\u3092\u76ee\u6307\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<h2>\u30a4\u30d9\u30f3\u30c8\u3068\u306f<\/h2>\n<p>\u307f\u306a\u3055\u3093\u306f<span style=\"color: #339966\"><strong>\u300c\u30a4\u30d9\u30f3\u30c8\u300d<\/strong><\/span>\u3068\u306f\u4f55\u304b\u308f\u304b\u308a\u307e\u3059\u304b\uff1f<\/p>\n<p>JavaScript\u306b\u304a\u3051\u308b\u300c\u30a4\u30d9\u30f3\u30c8\u300d\u3068\u306f\u3001<span style=\"color: #0000ff\"><strong>\u30a6\u30a7\u30d6\u30da\u30fc\u30b8\u4e0a\u3067\u767a\u751f\u3059\u308b\u3042\u3089\u3086\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u306e\u7dcf\u79f0<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001<span style=\"color: #ff0000\"><strong>\u30dc\u30bf\u30f3\u306e\u30af\u30ea\u30c3\u30af<\/strong><\/span>\u3001<span style=\"color: #ff0000\"><strong>\u30d5\u30a9\u30fc\u30e0\u3078\u306e\u5165\u529b<\/strong><\/span>\u3001<span style=\"color: #ff0000\"><strong>\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f<\/strong><\/span>\u3001<span style=\"color: #ff0000\"><strong>\u30de\u30a6\u30b9\u30dd\u30a4\u30f3\u30bf\u3092\u8981\u7d20\u306e\u4e0a\u306b\u5408\u308f\u305b\u308b<\/strong><\/span>\u306a\u3069\u3001\u69d8\u3005\u306a\u51fa\u6765\u4e8b\u304c\u30da\u30fc\u30b8\u4e0a\u3067\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3068\u306f<\/h2>\n<p><span style=\"color: #54a870;\"><strong>\u300c\u30a4\u30d9\u30f3\u30c8\u300d<\/strong><\/span>\u3068<span style=\"color: #54a870;\"><strong>\u300c\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u300d<\/strong><\/span>\u306e\u9055\u3044\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u30cf\u30f3\u30c9\u30e9\u3068\u306f\u82f1\u8a9e\u306ehandler\u3067\u3042\u308a<span style=\"color: #254df2;\"><strong>\u52d5\u8a5ehandle\uff08\u6271\u3046\uff09<\/strong><\/span>\u304b\u3089\u7531\u6765\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u3001\u69d8\u3005\u306a\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u751f\u6642\u306b\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u30dc\u30bf\u30f3\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u969b\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u8868\u793a\u3055\u305b\u308b\u3001\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305f\u969b\u306b\u4f55\u304b\u3092\u8868\u793a\u3055\u305b\u308b\u3001\u306a\u3069\u69d8\u3005\u306a\u51e6\u7406\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306a\u30a4\u30d9\u30f3\u30c8\u306e\u51e6\u7406\u3092\u884c\u3046\u306e\u304c<span style=\"color: #f75959;\"><strong>\u300c\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u300d<\/strong><\/span>\u306e\u5f79\u76ee\u3067\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b<span style=\"color: #254df2;\"><strong>\u300con\u300d\u30ad\u30fc\u30ef\u30fc\u30c9<\/strong><\/span>\u306e\u96a3\u306b\u30a4\u30d9\u30f3\u30c8\u540d\u3092\u304f\u3063\u3064\u3051\u305f\u3082\u306e\u304c\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306e\u30cd\u30fc\u30df\u30f3\u30b0\u30d1\u30bf\u30fc\u30f3\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306e\u4e00\u89a7<\/h3>\n<p>\u3067\u306f\u3001\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u304c\u4f55\u304b\u5b66\u3093\u3060\u3068\u3053\u308d\u3067\u3001<span style=\"color: #0000ff\"><strong>\u4e3b\u8981\u306a\u30a4\u30d9\u30f3\u30c8\u3068\u305d\u306e\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3092\u30ea\u30b9\u30c8\u30a2\u30c3\u30d7<\/strong><\/span>\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<table style=\"height: 344px\" width=\"558\">\n<tbody>\n<tr>\n<td style=\"background-color: #bbedbd;text-align: center\">\u30a4\u30d9\u30f3\u30c8\u540d<\/td>\n<td style=\"background-color: #fac8c8;text-align: center\">\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u540d<\/td>\n<td style=\"background-color: #feffd6;text-align: center\">\u8aac\u660e<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">click<\/td>\n<td style=\"text-align: center\">\u00a0onclick<\/td>\n<td>\u00a0\u8981\u7d20\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">change<\/td>\n<td style=\"text-align: center\">\u00a0onchange<\/td>\n<td>\u00a0\u8981\u7d20\u306e\u5185\u5bb9\u304c\u5909\u66f4\u3055\u308c\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u00a0keypress<\/td>\n<td style=\"text-align: center\">\u00a0onkeypress<\/td>\n<td>\u00a0\u30ad\u30fc\u30dc\u30fc\u30c9\u306e\u30ad\u30fc\u3092\u62bc\u3057\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u00a0load<\/td>\n<td style=\"text-align: center\">\u00a0onload<\/td>\n<td>\u00a0\u30da\u30fc\u30b8\u304c\u8aad\u307f\u8fbc\u307e\u308c\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u00a0mouseover<\/td>\n<td style=\"text-align: center\">\u00a0onmouseover<\/td>\n<td>\u00a0\u8981\u7d20\u306b\u30de\u30a6\u30b9\u306e\u30ab\u30fc\u30bd\u30eb\u304c\u91cd\u306a\u3063\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u00a0select<\/td>\n<td style=\"text-align: center\">\u00a0onselect<\/td>\n<td>\u00a0\u30c6\u30ad\u30b9\u30c8\u306a\u3069\u3092\u9078\u629e\u3057\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u00a0dblclick<\/td>\n<td style=\"text-align: center\">\u00a0ondblclick<\/td>\n<td>\u00a0\u8981\u7d20\u304c\u30c0\u30d6\u30eb\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u00a0drag<\/td>\n<td style=\"text-align: center\">\u00a0ondrag<\/td>\n<td>\u00a0\u8981\u7d20\u304c\u30c9\u30e9\u30c3\u30b0\u3055\u308c\u305f\u6642<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center\">\u00a0scroll<\/td>\n<td style=\"text-align: center\">\u00a0onscroll<\/td>\n<td>\u00a0\u30b9\u30af\u30ed\u30fc\u30eb\u30d0\u30fc\u304c\u30b9\u30af\u30ed\u30fc\u30eb\u3055\u308c\u305f\u6642<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e0a\u306e\u8868\u306b\u307e\u3068\u3081\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306f<span style=\"color: #ff0000\"><strong>\u3069\u308c\u3082\u69d8\u3005\u306a\u30b7\u30c1\u30e5\u30a8\u30fc\u30b7\u30e7\u30f3\u306b\u4f7f\u3048\u308b<\/strong><\/span>\u306e\u3067\u3001\u305c\u3072\u899a\u3048\u3066\u304a\u304d\u305f\u3044\u3082\u306e\u3070\u304b\u308a\u3067\u3059\u3002<\/p>\n<h2>\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306e\u4f7f\u3044\u65b9<\/h2>\n<p>\u3067\u306f\u3001\u5b9f\u969b\u306b<span style=\"color: #0000ff\"><strong>\u30a4\u30d9\u30f3\u30c8\u767a\u751f\u6642\u306e\u51e6\u7406\u3092\u8a2d\u5b9a<\/strong><\/span>\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001<span style=\"color: #339966\"><strong>change\u30a4\u30d9\u30f3\u30c8<\/strong><\/span>\u3001\u3059\u306a\u308f\u3061<span style=\"color: #339966\"><strong>onchange\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9<\/strong><\/span>\u3092\u4f7f\u7528\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3092\u767b\u9332\u3059\u308b\u65b9\u6cd5\u306f\u3072\u3068\u3064\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u4eca\u56de\u306f\u30013\u7a2e\u985e\u307b\u3069\u3054\u7d39\u4ecb\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<h3>HTML\u5c5e\u6027\u3092\u4f7f\u3046\u65b9\u6cd5<\/h3>\n<p>\u307e\u305a\u6700\u521d\u306b<span style=\"color: #ff0000\"><strong>HTML\u306e\u30a4\u30d9\u30f3\u30c8\u5c5e\u6027\u3092\u4f7f\u7528<\/strong><\/span>\u3057\u3066\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u884c\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"lang:js decode:true \">&lt;html&gt;\r\n  &lt;body&gt;\r\n \r\n    &lt;p&gt;Please enter something...&lt;\/p&gt;\r\n    &lt;input type=&quot;text&quot; id=&quot;mytextbox&quot; onchange=&quot;myfunc()&quot;&gt;\r\n \r\n    &lt;script&gt;\r\n       function myfunc() {\r\n \r\n          console.log(&quot;Hello world!&quot;);\r\n \r\n       }\r\n    &lt;\/script&gt;\r\n \r\n  &lt;\/body&gt;\r\n&lt;\/html&gt;<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">Hello world!<\/pre>\n<p>\u4e0a\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u307e\u305a\u4ee5\u4e0b\u306e\u3088\u3046\u306a<span style=\"color: #0000ff\"><strong>\u7c21\u5358\u306a\u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210<\/strong><\/span>\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/2018-06-30-300x121.png\" alt=\"2018-06-30\" width=\"300\" height=\"121\" class=\"alignnone size-medium wp-image-61645\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/2018-06-30-300x121.png 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/2018-06-30-150x61.png 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/2018-06-30-640x259.png 640w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/2018-06-30.png 742w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>\u305d\u3057\u3066\u3001<span style=\"color: #0000ff\"><strong>input\u30bf\u30b0\u306e\u30b3\u30fc\u30c9\u306bonchange\u5c5e\u6027\u3092\u8ffd\u52a0<\/strong><\/span>\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u3001onchange\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3092\u767a\u52d5\u3055\u305b\u308b\u305f\u3081\u306b\u3001<span style=\"color: #ff0000\"><strong>onchange\u5c5e\u6027\u306e\u5024\u306b\u95a2\u6570myfunc\u3092\u6307\u5b9a<\/strong><\/span>\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>myfunc\u306f<span style=\"color: #339966\"><strong>Hello world!<\/strong><\/span>\u3068JavaScript<span style=\"color: #0000ff\"><strong>\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u8868\u793a<\/strong><\/span>\u3055\u305b\u308b\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u95a2\u6570\u3067\u3059\u3002<\/p>\n<p>\u3059\u308b\u3068\u3001\u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u306b\u4f55\u304b\u3092\u5165\u529b\u3057\u305f\u969b\u306bJavaScript\u30b3\u30f3\u30bd\u30fc\u30eb\u306bHello world!\u3068\u8868\u793a\u3055\u305b\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3057\u305f\u3002<\/p>\n<h3>\u30a4\u30d9\u30f3\u30c8\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3046\u65b9\u6cd5<\/h3>\n<p>\u3067\u306f\u6b21\u306b\u3054\u7d39\u4ecb\u3059\u308b\u65b9\u6cd5\u306f\u3001<span style=\"color: #ff0000\"><strong>\u30a4\u30d9\u30f3\u30c8\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u7528<\/strong><\/span>\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"lang:js decode:true \">&lt;html&gt;\r\n  &lt;body&gt;\r\n \r\n    &lt;p&gt;Please enter something...&lt;\/p&gt;\r\n    &lt;input type=&quot;text&quot; id = &quot;mytextbox&quot; onchange=&quot;myfunc()&quot;&gt;\r\n \r\n    &lt;script&gt;\r\n       var mybox = document.getElementById(&quot;mytextbox&quot;);\r\n       function myfunc() {\r\n          console.log(&quot;Hello world!&quot;);\r\n       }\r\n       mybox.onchange = myfunc();\r\n    &lt;\/script&gt;\r\n \r\n  &lt;\/body&gt;\r\n&lt;\/html&gt;<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">Hello world!<\/pre>\n<p>\u4e0a\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001<span style=\"color: #339966\"><strong>\u30c9\u30c3\u30c8\uff08.\uff09<\/strong><\/span>\u3092\u4f7f\u7528\u3057\u3001<span style=\"color: #ff0000\"><strong>onchange\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u3068\u3057\u3066\u6307\u5b9a\u3057\u305f\u3044\u95a2\u6570\u3092\u4ee3\u5165<\/strong><\/span>\u3057\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #339966\"><strong>getElementById\u95a2\u6570<\/strong><\/span>\u3067<span style=\"color: #0000ff\"><strong>\u4efb\u610f\u306e\u8981\u7d20\u3092\u53d6\u308a\u51fa\u3057<\/strong><\/span>\u3066\u5909\u6570mybox\u306b\u683c\u7d0d\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u305d\u306e\u8981\u7d20\u306e<span style=\"color: #0000ff\"><strong>onchange\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u95a2\u6570\u3092\u8a2d\u5b9a<\/strong><\/span>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6307\u5b9a\u3057\u305f\u95a2\u6570\u306fmyfunc\u3067\u3001<span style=\"color: #339966\"><strong>console.log\u95a2\u6570<\/strong><\/span>\u3092\u4f7f\u7528\u3057\u3066Hello world!\u3068\u8868\u793a\u3055\u305b\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u95a2\u6570\u3067\u3059\u3002<\/p>\n<p>\u3054\u89a7\u3044\u305f\u3060\u3051\u308b\u3088\u3046\u306b\u3001mybox\u3068\u8a18\u8ff0\u3057\u305f\u5f8c\u306b<span style=\"color: #ff0000\"><strong>\u30c9\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3066onchange\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u30a2\u30af\u30bb\u30b9<\/strong><\/span>\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u306f\u3001\u5148\u307b\u3069\u3068\u306f\u9055\u3044HTML\u8981\u7d20\u306e\u4e2d\u8eab\u3092\u5909\u66f4\u3057\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u4f7f\u3046\u65b9\u6cd5<\/h3>\n<p>\u3067\u306f\u3001<span style=\"color: #ff0000\"><strong>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u4f7f\u7528<\/strong><\/span>\u3059\u308b\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u5148\u307b\u3069\u7d39\u4ecb\u3057\u305f\u4e8c\u3064\u306e\u65b9\u6cd5\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u304c\u3001\u6b20\u70b9\u304c\u3072\u3068\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #ff0000\"><strong>\u540c\u3058\u8981\u7d20\u306e\u540c\u3058\u30bf\u30a4\u30d7\u306e\u30a4\u30d9\u30f3\u30c8\u306b\u8907\u6570\u306e\u51e6\u7406\u306e\u767b\u9332\u304c\u51fa\u6765\u306a\u3044<\/strong><\/span>\u3068\u3044\u3046\u3068\u3053\u308d\u3067\u3059\u3002<\/p>\n<p>\u8907\u6570\u306e\u51e6\u7406\u3092\u767b\u9332\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001<span style=\"color: #0000ff\"><strong>\u4ee5\u524d\u306b\u767b\u9332\u3057\u305f\u51e6\u7406\u304c\u6700\u65b0\u306e\u3082\u306e\u306b\u4e0a\u66f8\u304d<\/strong><\/span>\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u306f\u3001\u8907\u6570\u306e\u30a4\u30d9\u30f3\u30c8\u3092\u767b\u9332\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u3092\u4f7f\u3046\u3068\u3044\u3046\u3053\u3068\u306f\u3001JavaScript\u306e\u65e2\u5b58\u30e1\u30bd\u30c3\u30c9\u306e<span style=\"color: #339966\"><strong>addEventListener<\/strong><\/span>\u3092\u4f7f\u7528\u3059\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"lang:js decode:true \">&lt;html&gt;\r\n  &lt;body&gt;\r\n \r\n    &lt;p&gt;Please enter something...&lt;\/p&gt;\r\n    &lt;input type=&quot;text&quot; id = &quot;mytextbox&quot; onchange=&quot;myfunc()&quot;&gt;\r\n \r\n    &lt;script&gt;\r\n       var mybox = document.getElementById(&quot;mytextbox&quot;);\r\n       function myfunc() {\r\n          console.log(&quot;Hello world!&quot;);\r\n       }\r\n       mybox.addEventListener(&quot;change&quot;,myfunc);\r\n    &lt;\/script&gt;\r\n \r\n  &lt;\/body&gt;\r\n&lt;\/html&gt;<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">Hello world!<\/pre>\n<p>\u4e0a\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u4f5c\u6210\u3084\u8981\u7d20\u306e\u53d6\u308a\u51fa\u3057\u306a\u3069\u306f\u5148\u307b\u3069\u3068\u4f55\u3082\u5909\u308f\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u5909\u308f\u308b\u306e\u306f\u3001<span style=\"color: #ff0000\"><strong>\u305d\u306e\u8981\u7d20\u306e\u30e1\u30bd\u30c3\u30c9addEventListener\u3092\u4f7f\u7528\u3057\u3001\u51e6\u7406\u3092\u767b\u9332<\/strong><\/span>\u3057\u3066\u3044\u308b\u90e8\u5206\u3067\u3059\u3002<\/p>\n<p>addEventListener\u306f<span style=\"color: #0000ff\"><strong>\u3075\u305f\u3064\u306e\u5f15\u6570\u3092\u5fc5\u8981<\/strong><\/span>\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>1\u3064\u76ee\u306f<span style=\"color: #339966\"><strong>\u30a4\u30d9\u30f3\u30c8\u540d<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f<span style=\"color: #0000ff\"><strong>\u300c\u30d5\u30a9\u30fc\u30e0\u306e\u5185\u5bb9\u304c\u5909\u66f4\u3055\u308c\u305f\u6642\u300d<\/strong><\/span>\u306a\u306e\u3067\u3001<span style=\"color: #339966\"><strong>change\u30a4\u30d9\u30f3\u30c8<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u306f\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3067\u306f\u306a\u304f\u30a4\u30d9\u30f3\u30c8\u81ea\u4f53\u3092\u6307\u5b9a\u3059\u308b\u306e\u3067\u3001<span style=\"color: #ff0000\"><strong>on\u306f\u4ed8\u3051\u306a\u304f\u3066\u826f\u3044<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>2\u3064\u76ee\u306f\u3001<span style=\"color: #339966\"><strong>\u51e6\u7406\u306e\u969b\u306b\u5b9f\u884c\u3057\u305f\u3044\u95a2\u6570<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u3082\u3001<span style=\"color: #339966\"><strong>myfunc<\/strong><\/span>\u3068\u3044\u3046Hello world!\u3068\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u8868\u793a\u3055\u305b\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u95a2\u6570\u3092\u6307\u5b9a\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u306b\u3064\u3044\u3066\u306e\u3088\u308a\u8a73\u3057\u3044\u8aac\u660e\u306f\u4ee5\u4e0b\u306e\u30ea\u30f3\u30af\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/57625\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/image8-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010JavaScript\u5165\u9580\u3011addEventListener()\u306b\u3088\u308b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u4f7f\u3044\u65b9\uff01<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2025\u5e7412\u670829\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h2>\u30dc\u30bf\u30f3\u30a4\u30d9\u30f3\u30c8\u306e\u4f5c\u308a\u65b9<\/h2>\n<p>\u3053\u306e\u7ae0\u3067\u306f\u3001\u30dc\u30bf\u30f3\u8981\u7d20\u306b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<p>\u4e3b\u306b\u3001\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u306b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u5b66\u3093\u3067\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u3092\u4f5c\u3063\u3066\u307f\u3088\u3046<\/h3>\n<p>\u307e\u305a\u306f\u7c21\u5358\u306a<span style=\"color: #54a870;\"><strong>\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3<\/strong><\/span>\u306e\u30d5\u30a9\u30fc\u30e0\u3092\u4f5c\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u9078\u629e\u80a2\u304b\u30891\u3064\u3060\u3051\u30af\u30ea\u30c3\u30af\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<p>\u6b21\u306e\u30b5\u30f3\u30d7\u30eb\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<pre class=\"lang:js decode:true\">\r\n<form name=\"myform\">\r\n    <input name=\"myradio\" type=\"radio\" value=\"1\">\uff11<br>\r\n    <input name=\"myradio\" type=\"radio\" value=\"10\">\uff11\uff10<br>\r\n    <input name=\"myradio\" type=\"radio\" value=\"100\">\uff11\uff10\uff10\r\n<\/form>\r\n<\/pre>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<span style=\"color: #254df2;\"><strong>\u300c\uff11\u300d\u300c\uff11\uff10\u300d\u300c\uff11\uff10\uff10\u300d<\/strong><\/span>\u3068\u3044\u30463\u3064\u306e\u9078\u629e\u80a2\u3092\u914d\u7f6e\u3057\u305f\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u6ce8\u76ee\u3057\u3066\u6b32\u3057\u3044\u306e\u306f\u3044\u305a\u308c\u306e\u30d5\u30a9\u30fc\u30e0\u8981\u7d20\u306b\u3082<span style=\"color: #f75959;\"><strong>\u300cname\u5c5e\u6027\u300d<\/strong><\/span>\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u70b9\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u3069\u308c\u304b1\u3064\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u6642\u306bJavaScript\u304b\u3089\u7c21\u5358\u306b\u5024\u3092\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3>\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af(\u9078\u629e)\u3057\u3066\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u884c\u3046<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u5b9f\u969b\u306bJavaScript\u304b\u3089\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u306e<span style=\"color: #54a870;\"><strong>\u30af\u30ea\u30c3\u30af\u30a4\u30d9\u30f3\u30c8<\/strong><\/span>\u306e\u51e6\u7406\u3092\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u3001\u8a72\u5f53\u306e\u30d5\u30a9\u30fc\u30e0\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u69cb\u6587\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true\">\r\ndocument.form\u30bf\u30b0\u306ename\u5c5e\u6027\u5024.input\u30bf\u30b0\u306ename\u5c5e\u6027\u5024\r\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b<span style=\"color: #54a870;\"><strong>document<\/strong><\/span>\u306b\u7d9a\u3051\u3066\u30d5\u30a9\u30fc\u30e0\u8981\u7d20\u306e<span style=\"color: #254df2;\"><strong>name\u5c5e\u6027\u5024<\/strong><\/span>\u3092\u9023\u7d50\u3057\u3066\u3044\u304f\u3060\u3051\u3067\u76ee\u7684\u306e\u8981\u7d20\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u9078\u629e\u3057\u305f\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true\">\r\ndocument.myform.myradio.value\r\n<\/pre>\n<p>\u3055\u3089\u306b\u3001\u30af\u30ea\u30c3\u30af\u3057\u305f\u6642\u306b\u5024\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true\">\r\ndocument.myform.addEventListener('change', function() {\r\n\r\n    console.log(document.myform.myradio.value);\r\n\r\n})\r\n<\/pre>\n<p><span style=\"color: #254df2;\"><strong>\u300cdocument.myform\u300d<\/strong><\/span>\u306b\u7d9a\u3051\u3066addEventListener\u3067<span style=\"color: #f75959;\"><strong>\u300cchange\u300d\u30a4\u30d9\u30f3\u30c8\u51e6\u7406<\/strong><\/span>\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u3001\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u6642\u306e\u51e6\u7406\u3092\u5236\u5fa1\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3042\u3068\u306f\u3001\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u95a2\u6570\u5185\u3067\u9078\u629e\u3055\u308c\u305f\u30e9\u30b8\u30aa\u30dc\u30bf\u30f3\u306e\u5024\u3092\u53d6\u5f97\u3059\u308c\u3070\u826f\u3044\u308f\u3051\u3067\u3059\u306d\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u4eca\u56de\u306fJavaScript\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3088\u304f\u898b\u304b\u3051\u308b<span style=\"color: #339966\"><strong>\u300con\u25cb\u25cb\u300d<\/strong><\/span>\u3001\u3059\u306a\u308f\u3061\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3084\u305d\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306fJavaScript\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u306f<span style=\"color: #ff0000\"><strong>\u983b\u7e41\u306b\u51fa\u73fe\u3059\u308b\u3082\u306e<\/strong><\/span>\u306a\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<p>\u307f\u306a\u3055\u3093\u3082\u3053\u306e\u8a18\u4e8b\u3092\u901a\u3057\u3066\u3001\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3084\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306b\u3064\u3044\u3066\u306e\u77e5\u8b58\u3092\u3069\u3093\u3069\u3093\u6df1\u3081\u3066\u3044\u3063\u3066\u304f\u3060\u3055\u3044\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u56de\u306f\u3001JavaScript\u306b\u304a\u3051\u308b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306b\u3064\u3044\u3066\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3092\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01 \u300c\u305d\u3082\u305d\u3082\u30a4\u30d9\u30f3\u30c8\u3001\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3063\u3066\u4f55\uff1f\u300d \u300c\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u4f5c\u308a\u65b9\u3092\u77e5\u308a\u305f\u3044\u300d \u300c\u30dc\u30bf\u30f3\u306b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u3092\u8ffd\u52a0\u3057 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":69184,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2346],"tags":[95,1559,1561],"class_list":["post-61631","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript-study","tag-javascript","tag-on","tag-1561"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u3010JavaScript\u5165\u9580\u3011\u521d\u5fc3\u8005\u3067\u3082\u5206\u304b\u308b\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u306e\u4f5c\u308a\u65b9\u307e\u3068\u3081\uff01 | 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