{"id":5221,"date":"2026-02-21T12:14:59","date_gmt":"2026-02-21T03:14:59","guid":{"rendered":"https:\/\/dennie.tokyo\/it\/?p=5221"},"modified":"2026-02-23T16:47:29","modified_gmt":"2026-02-23T07:47:29","slug":"%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%83%87%e3%83%bc%e3%82%bf%e5%b1%9e%e6%80%a7","status":"publish","type":"post","link":"https:\/\/dennie.tokyo\/it\/?p=5221","title":{"rendered":"\u30ab\u30b9\u30bf\u30e0\u30c7\u30fc\u30bf\u5c5e\u6027"},"content":{"rendered":"\n

HTML\u8981\u7d20\u306b\u306f “id” \u3084 “class” \u306e\u3088\u3046\u306a\u5c5e\u6027\u304c\u8a2d\u5b9a\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n

\u30ab\u30b9\u30bf\u30e0\u30c7\u30fc\u30bf\u5c5e\u6027\u306f\u4efb\u610f\u306e\u5c5e\u6027\u3092\u6307\u5b9a\u3059\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n

\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u3068\u306f<\/h1>\n\n\n\n

HTML\u8981\u7d20\u306b “data-xxx”<\/strong> \u306e\u5f62\u5f0f\u3067\u4efb\u610f\u306e\u5c5e\u6027\u3092\u6307\u5b9a\u3059\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n

<div id="sample" data-flg="on">\u30b5\u30f3\u30d7\u30eb<\/div><\/code><\/pre><\/div>\n\n\n\n
\u7528\u9014<\/h1>\n\n\n\n
\u5c5e\u6027\u306b\u30c7\u30fc\u30bf\u3092\u6301\u305f\u305b\u305f\u3044\u5834\u5408\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u306e\u5024\u306e\u53d6\u5f97<\/h1>\n\n\n\n
\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5024\u3092\u53d6\u5f97\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n
HTML<\/strong><\/p>\n\n\n\n
<div id="sample" data-flg="on">\u30b5\u30f3\u30d7\u30eb<\/div><\/code><\/pre><\/div>\n\n\n\n
java script<\/strong><\/p>\n\n\n\n
HTML\u8981\u7d20\u3092\u53d6\u5f97\u3057\u3001dataset\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306f “data-” \u3092\u9664\u3044\u305f\u30d7\u30ed\u30d1\u30c6\u30a3\u540d\u3067\u53d6\u5f97\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n
const sample = document.getElementById('sample');\nconsole.log(sample.dataset.flg); \/\/ "on" \u3068\u3044\u3046\u6587\u5b57\u5217\u304c\u53d6\u5f97\u51fa\u6765\u307e\u3059\u3002<\/code><\/pre><\/div>\n\n\n\n
\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u306e\u5024\u306e\u8a2d\u5b9a<\/h1>\n\n\n\n
\u30ab\u30b9\u30bf\u30e0\u5c5e\u6027\u3078\u5024\u3092\u8a2d\u5b9a\u51fa\u6765\u307e\u3059\u3002<\/p>\n\n\n\n
HTML<\/strong><\/p>\n\n\n\n
<div id="sample" data-flg="on">\u30b5\u30f3\u30d7\u30eb<\/div><\/code><\/pre><\/div>\n\n\n\n
java script<\/strong><\/p>\n\n\n\n
const sample = document.getElementById('sample');\nsample.dataset.flg = "off";\nconsole.log(sample.dataset.flg); \/\/ "off" \u3068\u3044\u3046\u6587\u5b57\u5217\u304c\u53d6\u5f97\u51fa\u6765\u307e\u3059\u3002<\/code><\/pre><\/div>\n\n\n\n
\u6700\u5f8c\u306b<\/h1>\n\n\n\n
\u7279\u306b\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
HTML\u8981\u7d20\u306b\u306f “id” \u3084 “class” \u306e\u3088\u3046\u306a\u5c5e\u6027\u304c\u8a2d\u5b9a\u51fa\u6765\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-5221","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\/5221","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=5221"}],"version-history":[{"count":5,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/5221\/revisions"}],"predecessor-version":[{"id":5232,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=\/wp\/v2\/posts\/5221\/revisions\/5232"}],"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=5221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dennie.tokyo\/it\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}