{"id":5225,"date":"2026-02-21T12:29:02","date_gmt":"2026-02-21T03:29:02","guid":{"rendered":"https:\/\/dennie.tokyo\/it\/?p=5225"},"modified":"2026-02-23T16:45:16","modified_gmt":"2026-02-23T07:45:16","slug":"%e7%94%bb%e5%83%8f%e3%81%ae%e5%88%87%e3%82%8a%e6%9b%bf%e3%81%88","status":"publish","type":"post","link":"https:\/\/dennie.tokyo\/it\/?p=5225","title":{"rendered":"\u753b\u50cf\u306e\u5207\u308a\u66ff\u3048"},"content":{"rendered":"\n<p>\u753b\u50cf\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3089\u3001\u753b\u50cf\u304c\u5207\u308a\u66ff\u308f\u308b\u3088\u3046\u306a\u52d5\u304d\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<h1 class=\"wp-block-heading\">\u5b9f\u88c5<\/h1>\n\n\n\n<p><strong>HTML<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;img id=&#39;sample_img&#39; data-flg=&quot;before&quot; src=&quot;https:\/\/placehold.jp\/3d4070\/ffffff\/150x150.png&quot; alt=&quot;sample&quot;&gt;  <\/code><\/pre><\/div>\n\n\n\n<p><strong>java script<\/strong><\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-js\" data-lang=\"JavaScript\"><code>\/\/ \u753b\u50cf\u306e\u53d6\u5f97\nconst sample_img = document.getElementById(&#39;sample_img&#39;);\n\n\/\/ \u753b\u50cf\u5207\u308a\u66ff\u3048\u30a4\u30d9\u30f3\u30c8\u306e\u8a2d\u5b9a\nsample_img.addEventListener(&#39;click&#39;, function (e) {\n  \n  \/\/ \u5909\u66f4\u524d\u306e\u753b\u50cf\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u3092\u884c\u3046\n  if(sample_img.dataset.flg === &#39;before&#39;){\n\n    \/\/ \u753b\u50cf\u3092\u5909\u66f4\u5f8c\u306e\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.src=&#39;https:\/\/placehold.jp\/43703e\/ffffff\/150x150.png&#39;;\n    \n    \/\/ \u753b\u50cf\u8868\u793a\u30d5\u30e9\u30b0\u3092\u5909\u66f4\u5f8c\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.dataset.flg = &#39;after&#39;;\n\n  \/\/ \u5909\u66f4\u5f8c\u306e\u753b\u50cf\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u3092\u884c\u3046\n  } else {\n\n    \/\/ \u753b\u50cf\u3092\u5909\u66f4\u524d\u306e\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.src=&#39;https:\/\/placehold.jp\/3d4070\/ffffff\/150x150.png&#39;;\n\n    \/\/ \u753b\u50cf\u8868\u793a\u30d5\u30e9\u30b0\u3092\u5909\u66f4\u524d\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.dataset.flg = &#39;before&#39;;\n  }\n});\n<\/code><\/pre><\/div>\n\n\n\n<p>\u30ab\u30b9\u30bf\u30e0\u30c7\u30fc\u30bf\u5c5e\u6027\u3092\u4f7f\u7528\u3057\u3066\u753b\u50cf\u3092\u5207\u308a\u66ff\u3048\u308b\u524d\u5f8c\u306e\u5224\u65ad\u3092\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u306f\u4ee5\u4e0b\u3092\u53c2\u8003\u306b\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n<div class=\"title_box\"><span class=\"box-title\">\u53c2\u8003<\/span>\n<p><a href=\"https:\/\/dennie.tokyo\/it\/?p=5221\" rel=\"noopener noreferrer\" target=\"_blank\">\u30ab\u30b9\u30bf\u30e0\u30c7\u30fc\u30bf\u5c5e\u6027<\/a><\/p>\n<\/div>\n\n\n\n<p>\u306a\u304a\u3001\u753b\u50cf\u306f https:\/\/placehold.jp\/ \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u7d50\u679c<\/strong><\/p>\n\n\n\n<img decoding=\"async\" id='sample_img' data-flg=\"before\" src=\"https:\/\/placehold.jp\/3d4070\/ffffff\/150x150.png\" alt=\"sample\">\n<script>\n\/\/ \u753b\u50cf\u306e\u53d6\u5f97\nconst sample_img = document.getElementById('sample_img');\n\n\/\/ \u753b\u50cf\u5207\u308a\u66ff\u3048\u30a4\u30d9\u30f3\u30c8\u306e\u8a2d\u5b9a\nsample_img.addEventListener('click', function (e) {\n  \n  \/\/ \u5909\u66f4\u524d\u306e\u753b\u50cf\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u3092\u884c\u3046\n  if(sample_img.dataset.flg === 'before'){\n\n    \/\/ \u753b\u50cf\u3092\u5909\u66f4\u5f8c\u306e\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.src='https:\/\/placehold.jp\/43703e\/ffffff\/150x150.png';\n    \n    \/\/ \u753b\u50cf\u8868\u793a\u30d5\u30e9\u30b0\u3092\u5909\u66f4\u5f8c\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.dataset.flg = 'after';\n\n  \/\/ \u5909\u66f4\u5f8c\u306e\u753b\u50cf\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u3092\u884c\u3046\n  } else {\n\n    \/\/ \u753b\u50cf\u3092\u5909\u66f4\u524d\u306e\u753b\u50cf\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.src='https:\/\/placehold.jp\/3d4070\/ffffff\/150x150.png';\n\n    \/\/ \u753b\u50cf\u8868\u793a\u30d5\u30e9\u30b0\u3092\u5909\u66f4\u524d\u306b\u5207\u308a\u66ff\u3048\u308b\n    sample_img.dataset.flg = 'before';\n  }\n});\n<\/script>\n\n\n\n<h1 class=\"wp-block-heading\">\u6700\u5f8c\u306b<\/h1>\n\n\n\n<p>\u7279\u306b\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u753b\u50cf\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3089\u3001\u753b\u50cf\u304c\u5207\u308a\u66ff\u308f\u308b\u3088\u3046\u306a\u52d5\u304d\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":4348,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-5225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/5225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5225"}],"version-history":[{"count":3,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/5225\/revisions"}],"predecessor-version":[{"id":5229,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/5225\/revisions\/5229"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/media\/4348"}],"wp:attachment":[{"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}