{"id":179,"date":"2021-10-24T23:59:12","date_gmt":"2021-10-24T14:59:12","guid":{"rendered":"https:\/\/bell-cocoro.org\/blog\/?p=179"},"modified":"2021-10-25T13:31:07","modified_gmt":"2021-10-25T04:31:07","slug":"javascript-%e7%b5%b6%e5%af%be%e3%81%ab%e8%ba%ab%e3%81%ab%e3%81%a4%e3%81%91%e3%82%8b%e3%80%80%e8%b6%85%e5%85%a5%e9%96%80-%e3%80%80%e5%9f%ba%e7%a4%8e04","status":"publish","type":"post","link":"https:\/\/bell-cocoro.org\/blog\/2021\/10\/24\/javascript-%e7%b5%b6%e5%af%be%e3%81%ab%e8%ba%ab%e3%81%ab%e3%81%a4%e3%81%91%e3%82%8b%e3%80%80%e8%b6%85%e5%85%a5%e9%96%80-%e3%80%80%e5%9f%ba%e7%a4%8e04\/","title":{"rendered":"JavaScript \u7d76\u5bfe\u306b\u8eab\u306b\u3064\u3051\u308b\u3000\u201d\u8d85\u5165\u9580&#8221; \u3000\u57fa\u790e04"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><meta charset=\"utf-8\">JavaScript\u3092\u7d76\u5bfe\u8eab\u306b\u3064\u3051\u308b\u3092\u30c6\u30fc\u30de\u306b\u5b66\u7fd2\u3057\u3066\u3044\u3053\u3046\u3068\u601d\u3044\u307e\u3059\u3002\u300e\u56f3\u89e3\uff01JavaScript\u306e\u30c4\u30dc\u3068\u30b3\u30c4\u304c\u30bc\u30c3\u30bf\u30a4\u306b\u308f\u304b\u308b\u672c\u300c\u201d\u8d85\u201d\u5165\u9580\u7de8\u300d\u300f\u3092\u53c2\u8003\u306b\u8a18\u4e8b\u3092\u66f8\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DOM\u3068Document\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">DOM<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Web\u30d6\u30e9\u30a6\u30b6\u306f\u3001HTML\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u3001Web\u30da\u30fc\u30b8\u3092\u8868\u793a\u3057\u307e\u3059\u3002JavaScript\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306f\u3001\u3053\u306eWeb\u30da\u30fc\u30b8\u3092\u76f4\u63a5\u64cd\u4f5c\u3067\u304d\u307e\u305b\u3093\u3002DOM(Document Object MOdel)\u3068\u547c\u3070\u308c\u308b\u3001\u6587\u7ae0\u3092\u69cb\u9020\u5316\u3057\u305f\u3082\u306e\u3092\u901a\u3057\u3066  HTML\u6587\u66f8\u3092 \u5229\u7528\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002 <\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DOM\u30c4\u30ea\u30fc<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"619\" height=\"278\" src=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/DOM.png\" alt=\"\" class=\"wp-image-184\" srcset=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/DOM.png 619w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/DOM-300x135.png 300w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/DOM-320x144.png 320w\" sizes=\"(max-width: 619px) 100vw, 619px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4e0a\u306e\u56f3\u306e\u3088\u3046\u306b\u3001<code>&lt;html&gt;<\/code>\u30bf\u30b0\u3092\u9802\u70b9\u3068\u3059\u308b\u30c4\u30ea\u30fc\u69cb\u9020\u3092\u6301\u3061\u3001\u3053\u306e\u968e\u5c64\u306e\u3053\u3068\u3092 <strong>DOM\uff08Document Object Model\uff09\u30c4\u30ea\u30fc<\/strong>\u3068\u8a00\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30ce\u30fc\u30c9<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p> DOM\u306fWeb\u30da\u30fc\u30b8\u306e\u5185\u5bb9\u3092\u3001\u30c4\u30ea\u30fc\u72b6\u306b\u69cb\u9020\u5316\u3057\u305f\u3082\u306e\u3067\u3059\u3002 \u958b\u59cb\u30bf\u30b0\u304b\u3089\u7d42\u4e86\u30bf\u30b0\u307e\u3067\u306e\u584a\u3001\u5c5e\u6027\u3001\u30c6\u30ad\u30b9\u30c8\u3092\u3059\u3079\u3066 <strong>\u30ce\u30fc\u30c9(Node)<\/strong>\u3068\u547c\u3073\u307e\u3059\u3002HTML\u30bf\u30b0\u306b\u5bfe\u5fdc\u3059\u308b\u30ce\u30fc\u30c9\u3084\u3001\u5185\u90e8\u306e\u6587\u5b57\u5217\u306b\u5bfe\u5fdc\u3059\u308b\u30ce\u30fc\u30c9\u3001\u30b3\u30e1\u30f3\u30c8\u306b\u5bfe\u3059\u308b\u30ce\u30fc\u30c9\u306a\u3069\u3067\u3001DOM\u306e\u30c4\u30ea\u30fc\u306f\u69cb\u6210\u3055\u308c\u307e\u3059\u3002 <br>\u4e00\u756a\u306e\u5143\u306b\u306a\u308b\u30ce\u30fc\u30c9\uff08html\uff09\u306e\u3053\u3068\u3092\u30eb\u30fc\u30c8\u30ce\u30fc\u30c9\u3068\u8a00\u3044\u307e\u3059\u3002 <\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/4b55b3520ddebbc2ece602462d20c441-31.png\" alt=\"\" width=\"100%\" height=\"100%class=\"wp-image-231\" srcset=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/4b55b3520ddebbc2ece602462d20c441-31.png 742w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/4b55b3520ddebbc2ece602462d20c441-31-300x120.png 300w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/4b55b3520ddebbc2ece602462d20c441-31-320x129.png 320w\" sizes=\"(max-width: 742px) 100vw, 742px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(Windo)<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u4f7f\u3046\u6e96\u5099<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>  Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 \u306f\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30a6\u30a3\u30f3\u30c9\u30a6\u305d\u306e\u3082\u306e\u3092\u3042\u3089\u308f\u3059\u5927\u304d\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3001Web\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\u30b3\u30f3\u30c6\u30f3\u30c4\u9818\u57df(Document\u30aa\u30d6\u30b8\u30a7\u30af\u30c8)\u3092\u59cb\u3081\u3068\u3059\u308b\u69d8\u3005\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u675f\u306a\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30a6\u30a3\u30f3\u30c9\u30a6(\u30bf\u30d6)\u306e\u751f\u6210\u3068\u540c\u6642\u306bwindow(\u5148\u982d\u304c\u5c0f\u6587\u5b57)\u3068\u3044\u3046\u540d\u524d\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u304c\u5185\u90e8\u7684\u306b\u751f\u6210\u3055\u308c\u308b\u306e\u3067\u3001\u81ea\u5206\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3057\u306a\u304f\u3066\u3082\u3059\u3050\u306b\u4f7f\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"685\" height=\"274\" src=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/browser-object.png\" alt=\"\" class=\"wp-image-237\" srcset=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/browser-object.png 685w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/browser-object-300x120.png 300w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/browser-object-320x128.png 320w\" sizes=\"(max-width: 685px) 100vw, 685px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3(\u5185\u90e8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8)<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u305f\u304f\u3055\u3093\u306e\u5185\u90e8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u3057\u3066\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">\u4e3b\u8981\u306a\u5185\u90e8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/h4>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"308\" src=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/ea455f537ca56c19ebd3f6e7d14705a7.png\" alt=\"\" class=\"wp-image-239\" srcset=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/ea455f537ca56c19ebd3f6e7d14705a7.png 740w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/ea455f537ca56c19ebd3f6e7d14705a7-300x125.png 300w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/ea455f537ca56c19ebd3f6e7d14705a7-320x133.png 320w\" sizes=\"(max-width: 740px) 100vw, 740px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><span class=\"has-inline-color has-vivid-cyan-blue-color\"><strong>Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3084\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3068\u304d\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d\u306e\u201dWindow\u201d\u3092\u7701\u7565\u3067\u304d\u307e\u3059\u3002<\/strong><\/span><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u8a18\u6cd5<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u540d\u524d\u3068\u5024\u306e\u30da\u30a2\u3092\u30d7\u30ed\u30d1\u30c6\u30a3\u3001\u5024\u306e\u3064\u3051\u308b\u540d\u524d\u306e\u3053\u3068\u3092\u30d7\u30ed\u30d1\u30c6\u30a3\u540d\u3068\u8a00\u3044\u307e\u3059\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f{}\u3067\u62ec\u3063\u3066\u5b9a\u7fa9\u3057\u30d7\u30ed\u30d1\u30c6\u30a3\u540d\u3068\u5024\u3092:(\u30b3\u30ed\u30f3)\u3067\u533a\u5207\u308a\u3001\u30da\u30a2\u3092,(\u30ab\u30f3\u30de)\u3067\u533a\u5207\u308a\u307e\u3059\u3002Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3082\u3053\u306e\u8a18\u6cd5\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"272\" src=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/6eb9b1e7bac26b6d588cb6c5e9e44f93.png\" alt=\"\" class=\"wp-image-241\" srcset=\"https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/6eb9b1e7bac26b6d588cb6c5e9e44f93.png 800w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/6eb9b1e7bac26b6d588cb6c5e9e44f93-300x102.png 300w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/6eb9b1e7bac26b6d588cb6c5e9e44f93-768x261.png 768w, https:\/\/bell-cocoro.org\/blog\/wp-content\/uploads\/2021\/10\/6eb9b1e7bac26b6d588cb6c5e9e44f93-320x109.png 320w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Window\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u64cd\u4f5c<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p> \u5165\u308c\u5b50 \u306b\u306a\u3063\u3066\u3044\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3001\u6b21\u306e\u3088\u3046\u306b.(\u30d4\u30ea\u30aa\u30c9)\u3092\u8907\u6570\u3064\u306a\u3052\u308b\u3053\u3068\u3067\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-js\" data-lang=\"JavaScript\"><code>console.log(window.document.URL);\/\/\u30d5\u30a1\u30a4\u30eb\u306e\u5834\u6240\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/code><\/pre><\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u64cd\u4f5c\u306f\u3001\u73fe\u5728\u306eJavaScript\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u306f\u3001<strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u5fc5\u9808<\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<ol><li>\u53d6\u5f97\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d.\u30d7\u30ed\u30d1\u30c6\u30a3\u540d(\u30ad\u30fc)\u3082\u3057\u304f\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d[&#8220;\u30d7\u30ed\u30d1\u30c6\u30a3\u540d(\u30ad\u30fc)&#8221;]<\/li><li>\u5165\u308c\u5b50(\u30cd\u30b9\u30c8)\u306f.(\u30d4\u30ea\u30aa\u30c9)\u3082\u3057\u304f\u306f\u3001[](\u30d6\u30e9\u30f3\u30b1\u30c3\u30c8)\u3067\u3064\u306a\u3050<\/li><li>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d.\u30d7\u30ed\u30d1\u30c6\u30a3\u540d=\u5024\u3082\u3057\u304f\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d[&#8220;\u30d7\u30ed\u30d1\u30c6\u30a3\u540d&#8221;]=\u5024\u3067\u3001\u66f4\u65b0\u30fb\u8ffd\u52a0\u304c\u3067\u304d\u308b\u3002<\/li><\/ol>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div 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