{"id":3784,"date":"2022-10-28T18:25:07","date_gmt":"2022-10-28T09:25:07","guid":{"rendered":"https:\/\/weseek.co.jp\/tech\/?p=3784"},"modified":"2023-04-17T10:25:56","modified_gmt":"2023-04-17T01:25:56","slug":"pure-selectors-must-contain-at-least-one-local-class-or-id","status":"publish","type":"post","link":"https:\/\/weseek.co.jp\/tech\/3784\/","title":{"rendered":"pure selectors must contain at least one local class or id"},"content":{"rendered":"<h1>\u7d4c\u7def<\/h1>\n<p>css modules \u30d5\u30a1\u30a4\u30eb\u5185\u306b\u3001html \u30bb\u30ec\u30af\u30bf\u3092\u76f4\u63a5\u8a18\u8ff0\u3057\u305f\u3089\u30a8\u30e9\u30fc\u306b\u906d\u9047\u3057\u305f\u306e\u3067\u3001\u539f\u56e0\u3068\u89e3\u8aac\u3001\u89e3\u6c7a\u65b9\u6cd5\u3092\u7c21\u5358\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n<p><!--more--><\/p>\n\n<h1>\u3084\u3063\u305f\u3053\u3068<\/h1>\n<p>css modules \u30d5\u30a1\u30a4\u30eb\u5185\u3067\u3001<code>&lt;h1&gt;<\/code> \u30bf\u30b0\u5185\u306e\u6587\u5b57\u8272\u3092 \u9ec4\u8272 \u306b\u3059\u308b\u30af\u30e9\u30b9\u6307\u5b9a\u3092\u8ffd\u8a18\u3002 <\/p>\n<pre><code class=\"language-jsx:xxx.js\">import styles from &#039;..\/styles\/xxx.module.scss&#039;\n\nexport default function Home() {\n  return (\n    &lt;div className={styles.container}&gt;\n      &lt;h1&gt;Welcome to My app!&lt;\/h1&gt;  \/\/ \u3053\u3053\u306e\u8272\u3092\u9ec4\u8272\u306b\u5909\u3048\u305f\u3044\n    &lt;\/div&gt;\n  )\n}<\/code><\/pre>\n<pre><code class=\"language-scss:xxx.module.scss\">.container {\n  padding: 0 2rem;\n}\n\n\/\/ \u2193\u2193\u3000\u4ee5\u4e0b\u3092\u8ffd\u8a18\u3000\u2193\u2193\nh1 {\n  color: yellow;\n}<\/code><\/pre>\n<h1>\u30a8\u30e9\u30fc\u5185\u5bb9<\/h1>\n<pre><code class=\"language-bash\">.\/styles\/\uff58\uff58\uff58.module.css:131:1\nSyntax error: Selector &quot;h1&quot; is not pure (pure selectors must contain at least one local class or id)<\/code><\/pre>\n<pre><code>\u30b7\u30f3\u30bf\u30c3\u30af\u30b9\u30a8\u30e9\u30fc\u3002\n\u30bb\u30ec\u30af\u30bf &quot;h1&quot; \u306f pure \u3067\u306f\u3042\u308a\u307e\u305b\u3093\uff08 pure \u306a\u30bb\u30ec\u30af\u30bf\u306f\u3001\u5c11\u306a\u304f\u3068\u30821\u3064\u306e\u30ed\u30fc\u30ab\u30eb\u30af\u30e9\u30b9\u307e\u305f\u306f ID \u3092\u542b\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff09\u3002<\/code><\/pre>\n<h1>\u89e3\u8aac<\/h1>\n<p>\u4e0a\u8a18\u3067\u3044\u3046 pure \u3068\u306f\u3001\u81ea\u524d\u3067\u7528\u610f\u3059\u308b <code>.top-page-title<\/code> \u3084 <code>#top-page<\/code> \u306a\u3069\u306e class\u30bb\u30ec\u30af\u30bf \u3084 id\u30bb\u30ec\u30af\u30bf \u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u53cd\u5bfe\u306b <code>html<\/code>, <code>body<\/code>, <code>button<\/code>, <code>h1<\/code> \u306a\u3069\u306f impure \u306a\u30bb\u30ec\u30af\u30bf\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h1>\u539f\u56e0<\/h1>\n<p>\u3064\u307e\u308a\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u306f <code>xxx.module.scss<\/code> \u3068\u3044\u3046 css modules \u30d5\u30a1\u30a4\u30eb\u5185\u306b\u3001 impure \u306a\u30bb\u30ec\u30af\u30bf\u3092\u8a18\u8ff0\u3057\u3066\u3044\u308b\u3053\u3068\u3002<\/p>\n<p>\u30eb\u30fc\u30eb\u3068\u3057\u3066\u3001css modules \u30d5\u30a1\u30a4\u30eb\u3067\u306f impure \u306a\u30bb\u30ec\u30af\u30bf\u306f\u4f7f\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h1>\u89e3\u6c7a\u65b9\u6cd5\uff11<\/h1>\n<p>css modules \u30d5\u30a1\u30a4\u30eb\u306b pure \u306a class\u30bb\u30ec\u30af\u30bf(id \u3067\u3082\u53ef)\u3092\u7528\u610f\u3057\u3001 import \u3057\u305f\u3046\u3048\u3067\u305d\u306e style \u3092\u9069\u7528\u3057\u3066\u3042\u3052\u308b\u3002<\/p>\n<p>\u3053\u308c\u304c\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-scss:xxx.module.scss\">.container {\n  padding: 0 2rem;\n}\n\n\/\/ \u30af\u30e9\u30b9\u30bb\u30ec\u30af\u30bf\u3092\u7528\u610f\n.title {\n  color: yellow;\n}<\/code><\/pre>\n<pre><code class=\"language-js:xxx.js\">import styles from &#039;..\/styles\/xxx.module.scss&#039; \/\/ import\n\nexport default function Home() {\n  return (\n    &lt;div className={styles.container}&gt;\n      \/\/ styles.title\u3000\u3067\u9069\u7528\n      &lt;h1 className=&quot;{styles.title}&quot;&gt;Welcome to My app!&lt;\/h1&gt;\n    &lt;\/div&gt;\n  )\n}<\/code><\/pre>\n<h1>\u89e3\u6c7a\u65b9\u6cd52<\/h1>\n<p>(\u30cd\u30b9\u30c8\u304c\u3067\u304d\u308b Sass \u3067\u3042\u308c\u3070) pure \u306a\u30bb\u30ec\u30af\u30bf\u5185\u306b\u8a18\u8ff0\u3059\u308b\u3002<\/p>\n<p>\u5b9f\u306f\u3001pure \u306a\u30bb\u30ec\u30af\u30bf\u306e\u4e0b\u3067\u3042\u308c\u3070\u3001 h1\u7b49\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-scss:xxx.module.scss\">.container {\n  padding: 0 2rem;\n\n  \/\/ .container \u306e\u4e2d\u306b h1 \u3092\u8a18\u8ff0\n  h1 {\n    color: yellow\n  }\n}<\/code><\/pre>\n<h2>\u30b3\u30f3\u30d1\u30a4\u30eb\u5f8c\u306e css<\/h2>\n<p>css modules \u306e\u5834\u5408\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f css \u306f\u57fa\u672c\u7684\u306b\u30bb\u30ec\u30af\u30bf\u306e\u5f8c\u306b hash\u306e\u3088\u3046\u306a\u5024\u304c\u4ed8\u4e0e\u3055\u308c\u307e\u3059\u3002(\u4e0b\u753b\u50cf\u306e<code>__ngV3c<\/code>\u306e\u90e8\u5206)<\/p>\n<p><code>css modules \u30d5\u30a1\u30a4\u30eb\u540d\u306e\u982d\u90e8\u5206<\/code> + <code>_pure\u30bb\u30ec\u30af\u30bf\u540d<\/code> + <code>__hash\u306e\u3088\u3046\u306a\u5024<\/code><\/p>\n<p>\u3057\u304b\u3057\u3001class\u30bb\u30ec\u30af\u30bf\u3001id\u30bb\u30ec\u30af\u30bf\u3067\u306a\u3044 h1 \u3084 p \u306a\u3069\u306f\u3001 hash\u306e\u3088\u3046\u306a\u5024\u304c\u4ed8\u4e0e\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img src=\"https:\/\/weseek.co.jp\/tech\/wp-content\/uploads\/2022\/10\/scss_image.png\" alt=\"\" width=\"355\" class=\"aligncenter size-full wp-image-3785\" srcset=\"https:\/\/weseek.co.jp\/tech\/wp-content\/uploads\/2022\/10\/scss_image.png 355w, https:\/\/weseek.co.jp\/tech\/wp-content\/uploads\/2022\/10\/scss_image-300x131.png 300w, https:\/\/weseek.co.jp\/tech\/wp-content\/uploads\/2022\/10\/scss_image-304x133.png 304w, https:\/\/weseek.co.jp\/tech\/wp-content\/uploads\/2022\/10\/scss_image-282x123.png 282w\" sizes=\"(max-width: 355px) 100vw, 355px\" \/><\/p>\n<h1>\u307e\u3068\u3081<\/h1>\n<p>\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>css modules \u306f css \u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u30b9\u30b3\u30fc\u30d7\u6c5a\u67d3\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306e\u4e00\u3064\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001 css modules \u30d5\u30a1\u30a4\u30eb\u5185\u306b\u306f\u3001\u57fa\u672c\u7684\u306b\u7279\u5b9a\u306e\u5bfe\u8c61\u306b\u306e\u307f\u30af\u30e9\u30b9\u3092\u5f53\u3066\u308b\u3088\u3046\u306a\u8a18\u8ff0\uff08\u3064\u307e\u308a\u30af\u30e9\u30b9\u30bb\u30ec\u30af\u30bf\u7b49\u3092\u7528\u610f\uff09\u3092\u3059\u3079\u304d\u3067\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u9069\u7528\u3057\u305f\u3044\u30b9\u30bf\u30a4\u30eb\u3092 css modules \u5185\u306b\u8a18\u8ff0\u3059\u3079\u304d\u3067\u306f\u306a\u3044\u3093\u3067\u3059\u306d\u3002<\/p>\n<p>\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u9069\u7528\u3057\u305f\u3044\u3082\u306e\u306f\u30b0\u30ed\u30fc\u30d0\u30eb\u306a\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u3066\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u306a\u5834\u6240\u3067 import \u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7d4c\u7def css modules \u30d5\u30a1\u30a4\u30eb\u5185\u306b\u3001html \u30bb\u30ec\u30af\u30bf\u3092\u76f4\u63a5\u8a18\u8ff0\u3057\u305f\u3089\u30a8\u30e9\u30fc\u306b\u906d\u9047\u3057\u305f\u306e\u3067\u3001\u539f\u56e0\u3068\u89e3\u8aac\u3001\u89e3\u6c7a\u65b9\u6cd5\u3092\u7c21\u5358\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"author":3,"featured_media":2166,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[129,31,49,130],"tags":[],"_links":{"self":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts\/3784"}],"collection":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/comments?post=3784"}],"version-history":[{"count":11,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts\/3784\/revisions"}],"predecessor-version":[{"id":4003,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/posts\/3784\/revisions\/4003"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/media\/2166"}],"wp:attachment":[{"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/media?parent=3784"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/categories?post=3784"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/weseek.co.jp\/tech\/wp-json\/wp\/v2\/tags?post=3784"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}