{"id":1218,"date":"2022-11-16T21:54:29","date_gmt":"2022-11-16T13:54:29","guid":{"rendered":"https:\/\/fdream.net\/blog\/?p=1218"},"modified":"2022-11-16T21:54:30","modified_gmt":"2022-11-16T13:54:30","slug":"%e7%bf%bb%e8%af%91%e4%b8%ba%e4%bb%80%e4%b9%88%e6%88%91%e4%bb%ac%e6%94%be%e5%bc%83%e4%ba%86%e4%bd%bf%e7%94%a8css-in-js","status":"publish","type":"post","link":"https:\/\/fdream.net\/blog\/article\/1218","title":{"rendered":"[\u7ffb\u8bd1]\u4e3a\u4ec0\u4e48\u6211\u4eec\u653e\u5f03\u4e86\u4f7f\u7528CSS-in-JS"},"content":{"rendered":"\n<p>\u6211\u662fSam\uff0cSpot\u7684\u4e00\u4f4d\u8f6f\u4ef6\u5de5\u7a0b\u5e08\uff0c\u4e5f\u662fEmotion\u5e93\u7b2c\u4e8c\u6d3b\u8dc3\u7684\u7ef4\u62a4\u8005\u3002Emotion\u662f\u4e00\u4e2a\u5728React\u9879\u76ee\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684CSS-in-JS\u5e93\u3002\u8fd9\u7bc7\u6587\u7ae0\u5c06\u6df1\u5165\u63a2\u7a76\u6700\u521d\u5438\u5f15\u6211\u4f7f\u7528CSS-in-JS\u7684\u539f\u56e0\uff0c\u4ee5\u53ca\u4e3a\u4ec0\u4e48\u6211\uff08\u53caSpot\u56e2\u961f\u7684\u5176\u4ed6\u6210\u5458\uff09\u53c8\u51b3\u5b9a\u653e\u5f03\u5b83\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u5c06\u4eceCSS-in-JS\u7684\u6982\u8ff0\u5f00\u59cb\uff0c\u5e76\u7b80\u8981\u4ecb\u7ecd\u4e00\u4e0b\u5b83\u7684\u4f18\u7f3a\u70b9\u3002\u7136\u540e\uff0c\u6211\u4eec\u518d\u6df1\u5165\u63a2\u7a76\u5728CSS-in-JS\u5728Spot\u4e0a\u5f15\u53d1\u7684\u6027\u80fd\u95ee\u9898\uff0c\u4ee5\u53ca\u5982\u4f55\u907f\u514d\u5b83\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662fCSS-in-JS?<\/h2>\n\n\n\n<p>\u987e\u540d\u601d\u4e49\uff0cCSS-in-JS\u5141\u8bb8\u4f60\u76f4\u63a5\u5728JavaScript\u6216TypeScript\u4e2d\u5199\u5165CSS\u6765\u8bbe\u7f6e\u4f60\u7684React\u7ec4\u4ef6\u6837\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ @emotion\/react (css prop), with object styles\nfunction ErrorMessage({ children }) {\n  return (\n    &lt;div\n      css={{\n        color: 'red',\n        fontWeight: 'bold',\n      }}\n    >\n      {children}\n    &lt;\/div>\n  );\n}\n\n\/\/ styled-components or @emotion\/styled, with string styles\nconst ErrorMessage = styled.div`\n  color: red;\n  font-weight: bold;\n`;<\/code><\/pre>\n\n\n\n<p><a href=\"https:\/\/styled-components.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">styled-components<\/a>\u548c<a href=\"https:\/\/emotion.sh\/\" target=\"_blank\" rel=\"noreferrer noopener\">Emotion<\/a>\u662fReact\u793e\u533a\u4e2d\u6700\u53d7\u6b22\u8fce\u7684CSS-in-JS\u5e93\u3002\u867d\u7136\u6211\u53ea\u4f7f\u7528\u4e86 Emotion\uff0c\u4f46\u6211\u76f8\u4fe1\u672c\u6587\u4e2d\u7684\u51e0\u4e4e\u6240\u6709\u8981\u70b9\u4e5f\u9002\u7528\u4e8estyled-components\u3002<\/p>\n\n\n\n<p>\u672c\u6587\u5c06\u4e3b\u8981\u805a\u7126\u4e8e<strong>\u8fd0\u884c\u65f6CSS-in-JS<\/strong>\uff0c\u8fd9\u540c\u65f6\u5305\u542b\u4e86styled-components\u548cEmotion\u3002\u8fd0\u884c\u65f6CSS-in-JS\u7b80\u5355\u6765\u8bf4\u5c31\u662f\u8fd9\u4e2a\u5e93\u4f1a\u5728\u5e94\u7528\u8fd0\u884c\u7684\u65f6\u5019\u6765\u89e3\u91ca\u548c\u5e94\u7528\u4f60\u7684\u6837\u5f0f\u3002\u6211\u4eec\u5c06\u4f1a\u5728\u6587\u7ae0\u672b\u5c3e\u7b80\u8981\u8ba8\u8bba\u7f16\u8bd1\u65f6CSS-in-JS\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u597d\u7684\u3001\u574f\u7684\u53caCSS-in-JS\u7684\u4e11\u964b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u597d\u7684\u90e8\u5206<\/h3>\n\n\n\n<p>1. <strong>\u5c40\u90e8\u4f5c\u7528\u57df\u6837\u5f0f<\/strong>\u3002\u5728\u901a\u5e38\u5199\u666e\u901aCSS\u65f6\uff0c\u5f88\u5bb9\u6613\u4e0d\u5c0f\u5fc3\u610f\u5916\u5730\u6269\u5927\u6837\u5f0f\u7684\u4f5c\u7528\u8303\u56f4\u3002\u6bd4\u5982\uff0c\u5f53\u4f60\u5728\u505a\u4e00\u4e2a\u5217\u8868\u65f6\uff0c\u5e0c\u671b\u6bcf\u4e00\u884c\u90fd\u6709\u4e00\u4e2a\u8fb9\u8ddd\u548c\u4e00\u4e2a\u8fb9\u6846\u3002\u4f60\u53ef\u80fd\u4f1a\u8fd9\u6837\u5199CSS\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>   .row {\n     padding: 0.5rem;\n     border: 1px solid #ddd;\n   }<\/code><\/pre>\n\n\n\n<p>\u51e0\u4e2a\u6708\u4e4b\u540e\uff0c\u4f60\u5df2\u7ecf\u5b8c\u5168\u5fd8\u8bb0\u4e86\u8fd9\u4e2a\u5217\u8868\uff0c\u4f60\u53c8\u53e6\u5916\u521b\u5efa\u4e86\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u8fd9\u4e2a\u7ec4\u4ef6\u4e5f\u6709\u4e00\u884c\u4e00\u884c\u7684\u89c6\u56fe\u3002\u81ea\u7136\u800c\u7136\u5730\uff0c\u4f60\u7ed9\u8fd9\u4e9b\u5143\u7d20\u8bbe\u7f6e\u4e86<code>className=\"row\"<\/code>\u3002\u73b0\u5728\u8fd9\u4e2a\u65b0\u7ec4\u5efa\u91cc\u9762\u7684\u6bcf\u4e00\u884c\u90fd\u6709\u4e86\u4e0d\u597d\u770b\u7684\u8fb9\u8ddd\uff0c\u800c\u4e14\u4f60\u8fd8\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\uff01\u867d\u7136\u8fd9\u79cd\u95ee\u9898\u53ef\u4ee5\u7528\u66f4\u957f\u7684\u7c7b\u540d\u6216\u8005\u66f4\u7cbe\u786e\u7684\u9009\u62e9\u5668\u6765\u89e3\u51b3\uff0c\u4f46\u662f\u8fd9\u4ecd\u7136\u8981\u7531\u5f00\u53d1\u4eba\u5458\u6765\u4fdd\u8bc1\u6ca1\u6709\u7c7b\u540d\u51b2\u7a81\u3002<\/p>\n\n\n\n<p>CSS-in-JS\u901a\u8fc7\u9ed8\u8ba4\u6837\u5f0f\u4e3a\u5c40\u90e8\u4f5c\u7528\u57df\u5b8c\u5168\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002\u5982\u679c\u4f60\u8fd9\u6837\u6765\u5199\u4f60\u7684\u5217\u8868\u7684\u8bdd\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;div css={{ padding: '0.5rem', border: '1px solid #ddd' }}>...&lt;\/div><\/code><\/pre>\n\n\n\n<p>\u8fb9\u8ddd\u548c\u8fb9\u6846\u4e0d\u53ef\u80fd\u610f\u5916\u5730\u7528\u4e8e\u4e0d\u76f8\u5173\u7684\u5143\u7d20\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5907\u6ce8\uff1aCSS Modules \u540c\u6837\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u5c40\u90e8\u4f5c\u7528\u57df\u6837\u5f0f\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>2. <strong>\u96c6\u4e2d\u7ba1\u7406<\/strong>\u3002\u5982\u679c\u4f60\u4f7f\u7528\u666e\u901aCSS\uff0c\u4f60\u53ef\u80fd\u4f1a\u628a\u6240\u6709\u7684<code>.css<\/code>\u6587\u4ef6\u90fd\u653e\u5728<code>src\/styles<\/code>\u76ee\u5f55\u4e0b\uff0c\u800c\u4f60\u6240\u6709\u7684React\u7ec4\u4ef6\u90fd\u5728<code>src\/components<\/code>\u4e0b\u9762\u3002\u5f53\u5e94\u7528\u7684\u89c4\u6a21\u6269\u5927\u65f6\uff0c\u5c31\u5f88\u96be\u533a\u5206\u54ea\u4e2a\u6837\u5f0f\u8868\u662f\u54ea\u4e2a\u7ec4\u4ef6\u5728\u4f7f\u7528\u7684\u4e86\u3002\u901a\u5e38\u8fd9\u4e2a\u65f6\u5019\uff0c\u4f60\u7684CSS\u4ee3\u7801\u91cc\u9762\u5c31\u4f1a\u6709\u5f88\u591a\u65e0\u7528\u7684\u4ee3\u7801\uff0c\u56e0\u4e3a\u4f60\u4e5f\u6ca1\u529e\u6cd5\u533a\u5206\u54ea\u4e9b\u4ee3\u7801\u662f\u6ca1\u6709\u88ab\u4f7f\u7528\u7684\u3002<\/p>\n\n\n\n<p>\u4e00\u79cd\u66f4\u597d\u7684\u7ec4\u7ec7\u4ee3\u7801\u7684\u65b9\u5f0f\u662f\uff0c<strong>\u628a\u4e00\u4e2a\u7ec4\u4ef6\u76f8\u5173\u7684\u6240\u6709\u5185\u5bb9\u90fd\u653e\u5728\u540c\u4e00\u4e2a\u5730\u65b9<\/strong>\u3002\u8fd9\u79cd\u505a\u6cd5\u88ab\u79f0\u4e3a\u96c6\u4e2d\u7ba1\u7406\uff0c\u5728Kent C. Dodds\u7684<a href=\"https:\/\/kentcdodds.com\/blog\/colocation\" target=\"_blank\" rel=\"noreferrer noopener\">\u4e00\u7bc7\u4f18\u79c0\u7684\u535a\u6587<\/a>\u4e2d\u6709\u4ecb\u7ecd\u3002<\/p>\n\n\n\n<p>\u95ee\u9898\u5728\u4e8e\u4f7f\u7528\u666e\u901aCSS\u65f6\u5f88\u96be\u5b9e\u73b0\u96c6\u4e2d\u7ba1\u7406\uff0c\u56e0\u4e3aCSS\u548cJavaScript\u5fc5\u987b\u653e\u5728\u5355\u72ec\u7684\u6587\u4ef6\u5f53\u4e2d\uff0c\u800c\u4e0d\u7ba1\u4f60\u7684<code>.css<\/code>\u6587\u4ef6\u653e\u5728\u54ea\u91cc\uff0c\u4f60\u7684\u6837\u5f0f\u53c8\u4f1a\u88ab\u5168\u5c40\u4f7f\u7528\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u4f60\u4f7f\u7528\u4e86CSS-in-JS\uff0c\u4f60\u53ef\u4ee5\u76f4\u63a5\u5728React\u7ec4\u4ef6\u4e2d\u5199\u76f8\u5173\u7684\u6837\u5f0f\u3002\u5982\u679c\u64cd\u4f5c\u6b63\u786e\uff0c\u8fd9\u5c06\u5927\u5927\u5730\u63d0\u9ad8\u4f60\u7684\u5e94\u7528\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5907\u6ce8\uff1aCSS Modules \u4e5f\u5141\u8bb8\u4f60\u5c06\u6837\u5f0f\u4e0e\u7ec4\u4ef6\u96c6\u4e2d\u7ba1\u7406\uff0c\u5373\u4f7f\u4ed6\u4eec\u4e0d\u5728\u540c\u4e00\u6587\u4ef6\u4e2d\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>3. <strong>\u53ef\u4ee5\u5728\u6837\u5f0f\u4e2d\u4f7f\u7528JavaScript\u53d8\u91cf<\/strong>\u3002CSS-in-JS\u5141\u8bb8\u5728\u6837\u5f0f\u89c4\u5219\u4e2d\u5f15\u7528JavaScript\u53d8\u91cf\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ colors.ts\nexport const colors = {\n  primary: '#0d6efd',\n  border: '#ddd',\n  \/* ... *\/\n};\n\n\/\/ MyComponent.tsx\nfunction MyComponent({ fontSize }) {\n  return (\n    &lt;p\n      css={{\n        color: colors.primary,\n        fontSize,\n        border: `1px solid ${colors.border}`,\n      }}\n    >\n      ...\n    &lt;\/p>\n  );\n}<\/code><\/pre>\n\n\n\n<p>\u6b63\u5982\u8fd9\u4e2a\u4f8b\u5b50\u6240\u793a\uff0c\u4f60\u53ef\u4ee5\u5728CSS-in-JS\u6837\u5f0f\u4e2d\u540c\u65f6\u4f7f\u7528JavaScript\u5e38\u91cf\uff08\u5982<code>colors<\/code>\uff09\u548cReact props\/state\uff08\u5982<code>fontSize<\/code>\uff09\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5728\u6837\u5f0f\u4e2d\u4f7f\u7528JavaScript\u5e38\u91cf\u80fd\u591f\u51cf\u5c11\u91cd\u590d\uff0c\u56e0\u4e3a\u76f8\u540c\u7684\u5e38\u91cf\u4e0d\u7528\u540c\u65f6\u5b9a\u4e49CSS\u53d8\u91cf\u548cJavaScript\u5e38\u91cf\u3002\u4f7f\u7528props\u548cstate\u4f7f\u5f97\u4f60\u6709\u80fd\u529b\u521b\u5efa\u53ef\u4ee5\u9ad8\u5ea6\u5b9a\u5236\u6837\u5f0f\u7684\u7ec4\u4ef6\uff0c\u800c\u4e0d\u7528\u4f7f\u7528\u5185\u8054\u6837\u5f0f\u3002\uff08\u5f53\u76f8\u540c\u7684\u6837\u5f0f\u5e94\u7528\u4e8e\u8bb8\u591a\u5143\u7d20\u65f6\uff0c\u5185\u8054\u6837\u5f0f\u7684\u6027\u80fd\u5e76\u4e0d\u7406\u60f3\u3002\uff09<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e2d\u7acb\u7684\u90e8\u5206<\/h3>\n\n\n\n<p>1. <strong>\u5b83\u662f\u70ed\u95e8\u7684\u65b0\u6280\u672f<\/strong>\u3002\u8bb8\u591aWeb\u5f00\u53d1\u8005\uff0c\u5305\u62ec\u6211\u81ea\u5df1\uff0c\u90fd\u8fc5\u901f\u4f4e\u91c7\u7528\u4e86JavaScript\u793e\u533a\u4e2d\u6700\u70ed\u95e8\u7684\u65b0\u6280\u672f\u3002\u4e00\u65b9\u9762\u6765\u8bf4\u8fd9\u662f\u7406\u6027\u7684\uff0c\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u65b0\u7684\u5e93\u548c\u6846\u67b6\u90fd\u5df2\u7ecf\u88ab\u8bc1\u660e\u76f8\u6bd4\u4e4b\u524d\u7684\u5de5\u5177\u6765\u8bf4\u6709\u4e86\u5de8\u5927\u7684\u6539\u8fdb\u3002\uff08\u60f3\u60f3React\u76f8\u6bd4\u65e9\u8d77\u7684jQuery\u63d0\u9ad8\u4e86\u591a\u5c11\u751f\u4ea7\u529b\uff09\u3002\u53e6\u4e00\u65b9\u9762\u6765\u8bb2\uff0c\u6211\u4eec\u5bf9\u5168\u65b0\u5de5\u5177\u7684\u75f4\u8ff7\u4e5f\u4ec5\u4ec5\u53ea\u662f\u4e00\u79cd\u75f4\u8ff7\u3002\u6211\u4eec\u5bb3\u6015\u9519\u8fc7\u4e0b\u4e00\u4e2a\u5927\u4e8b\u4ef6\uff0c\u5bfc\u81f4\u6211\u4eec\u5728\u91c7\u7528\u65b0\u5de5\u5177\u6216\u8005\u6846\u67b6\u65f6\u4f1a\u5ffd\u89c6\u5b83\u771f\u6b63\u7684\u7f3a\u70b9\u3002\u6211\u8ba4\u4e3a\u8fd9\u4e5f\u662fCSS-in-JS\u88ab\u5e7f\u6cdb\u91c7\u7528\u7684\u4e00\u4e2a\u56e0\u7d20\u2014\u2014\u81f3\u5c11\u5bf9\u6211\u6765\u8bf4\u662f\u8fd9\u6837\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u574f\u7684\u90e8\u5206<\/h3>\n\n\n\n<p>1. <strong>CSS-in-JS<\/strong>\u589e\u52a0\u4e86\u8fd0\u884c\u65f6\u5f00\u9500\u3002\u5f53\u7ec4\u4ef6\u6e32\u67d3\u7684\u65f6\u5019\uff0cCSS-in-JS\u5e93\u5fc5\u987b\u628a\u6837\u5f0f\u5e8f\u5217\u5316\u4e3a\u666e\u901aCSS\uff0c\u4ee5\u4fbf\u63d2\u5165\u5230\u6587\u6863\u4e2d\u3002\u5f88\u660e\u663e\uff0c\u8fd9\u4f1a\u5360\u7528\u989d\u5916\u7684CPU\u5468\u671f\uff0c\u4f46\u662f\u5b83\u662f\u5426\u4f1a\u5bf9\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u4ea7\u751f\u660e\u663e\u7684\u5f71\u54cd\uff1f<strong>\u6211\u4eec\u5c06\u5728\u4e0b\u4e00\u8282\u4e2d\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e2a\u95ee\u9898\u3002<\/strong><\/p>\n\n\n\n<p>2. <strong>CSS-in-JS\u589e\u52a0\u4e86\u5305\u7684\u4f53\u79ef<\/strong>\u3002\u8fd9\u662f\u4e00\u4e2a\u663e\u800c\u6613\u89c1\u7684\u95ee\u9898\u2014\u2014\u6bcf\u4e2a\u8bbf\u95ee\u4f60\u7f51\u7ad9\u7684\u4eba\u90fd\u9700\u8981\u4e0b\u8f7dCSS-in-JS\u5e93\u3002Emotion\u5728\u538b\u7f29\u540e\u6709<a rel=\"noreferrer noopener\" href=\"https:\/\/bundlephobia.com\/package\/@emotion\/react@11.10.4\" target=\"_blank\">7.9KB<\/a>\uff0cstyled-components\u6709<a rel=\"noreferrer noopener\" href=\"https:\/\/bundlephobia.com\/package\/styled-components@5.3.6\" target=\"_blank\">12.7KB<\/a>\u3002\u867d\u7136\u8fd9\u4e24\u4e2a\u5e93\u90fd\u4e0d\u662f\u5f88\u5927\uff0c\u4f46\u662f\u5f53\u5e93\u591a\u4ee5\u540e\u52a0\u8d77\u6765\u5c31\u5927\u4e86\u3002\uff08\u4f5c\u4e3a\u5bf9\u6bd4<code>react<\/code>\u548c<code>react-dom<\/code>\u52a0\u8d77\u6765\u662f44.5KB\u3002\uff09<\/p>\n\n\n\n<p>3. <strong>CSS-in-JS\u4f7fReact DevTools\u66f4\u52a0\u6df7\u4e71<\/strong>\u3002\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u4f7f\u7528\u4e86<code>css<\/code>\u5c5e\u6027\u7684\u5143\u7d20\u6765\u8bf4\uff0cEmotion\u90fd\u4f1a\u6e32\u67d3<code>&lt;EmotionCssPropInternal><\/code>\u548c<code>&lt;Insertion><\/code>\u4e24\u4e2a\u7ec4\u4ef6\u3002\u5982\u679c\u4f60\u5728\u5f88\u591a\u5143\u7d20\u4e0a\u90fd\u4f7f\u7528\u4e86<code>css<\/code>\uff0cEmotion\u7684\u5185\u90e8\u7ec4\u4ef6\u4f1a\u8ba9React DevTools\u53d8\u5f97\u975e\u5e38\u6df7\u4e71\uff0c\u5c31\u50cf\u4e0b\u9762\u7684\u8fd9\u4e2a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image.png\"><img loading=\"lazy\" decoding=\"async\" width=\"335\" height=\"458\" src=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image.png\" alt=\"\" class=\"wp-image-1219\" srcset=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image.png 335w, https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-219x300.png 219w\" sizes=\"auto, (max-width: 335px) 100vw, 335px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u4e11\u964b\u7684\u90e8\u5206<\/strong><\/h3>\n\n\n\n<p>1. <strong>\u9891\u7e41\u5730\u63d2\u5165CSS\u89c4\u5219\u4f1a\u5bfc\u81f4\u6d4f\u89c8\u5668\u505a\u8bb8\u591a\u989d\u5916\u7684\u5de5\u4f5c<\/strong>\u3002React\u6838\u5fc3\u6210\u5458\u53caReact Hooks\u7684\u8bbe\u8ba1\u8005<a rel=\"noreferrer noopener\" href=\"https:\/\/github.com\/sebmarkbage\" data-type=\"URL\" data-id=\"https:\/\/github.com\/sebmarkbage\" target=\"_blank\">Sebastian Markb\u00e5ge<\/a>\u5728React 18\u5de5\u4f5c\u7ec4\u4e2d\u5199\u4e86<a href=\"https:\/\/github.com\/reactwg\/react-18\/discussions\/110\" target=\"_blank\" rel=\"noreferrer noopener\">\u4e00\u7bc7\u5185\u5bb9\u5145\u5b9e\u7684\u8ba8\u8bba<\/a>\uff0c\u5185\u5bb9\u6d89\u53caCSS-in-JS\u5e93\u8981\u5982\u4f55\u4fee\u6539\u624d\u80fd\u4e0eReact 18\u914d\u5408\u4f7f\u7528\uff0c\u4ee5\u53ca\u8fd0\u884c\u65f6CSS-in-JS\u7684\u672a\u6765\u3002\u4ed6\u7279\u522b\u5730\u5199\u9053\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5728\u5e76\u53d1\u6e32\u67d3\u4e2d\uff0cReact\u53ef\u4ee5\u5728\u6e32\u67d3\u5668\u548c\u6d4f\u89c8\u5668\u4e4b\u95f4\u5411\u6d4f\u89c8\u5668\u8ba9\u6b65\u3002\u5982\u679c\u4f60\u5728\u4e00\u4e2a\u7ec4\u4ef6\u4e2d\u63d2\u5165\u4e86\u4e00\u6761\u65b0\u89c4\u5219\uff0c\u90a3\u4e48React\u5c31\u4f1a\u8ba9\u6b65\uff0c\u8fd9\u65f6\u5019\u6d4f\u89c8\u5668\u5c31\u4f1a\u68c0\u67e5\u8fd9\u4e9b\u89c4\u5219\u662f\u5426\u9002\u7528\u4e8e\u73b0\u6709\u7684\u6811\u3002\u56e0\u6b64\u5b83\u4f1a\u91cd\u65b0\u8ba1\u7b97\u5f53\u524d\u7684\u6837\u5f0f\u89c4\u5219\u3002\u63a5\u4e0b\u6765React\u518d\u6e32\u67d3\u4e0b\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u7136\u540e\u7ec4\u4ef6\u53d1\u73b0\u4e86\u65b0\u89c4\u5219\u518d\u91cd\u590d\u4e0a\u9762\u7684\u8fc7\u7a0b\u3002<\/p>\n\n\n\n<p><strong>\u5728React\u6e32\u67d3\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8fd9\u5c06\u5b9e\u9645\u5bfc\u81f4\u6bcf\u4e00\u5e27\u90fd\u4f1a\u9488\u5bf9\u6240\u6709DOM\u8282\u70b9\u8ba1\u7b97CSS\u89c4\u5219<\/strong><em>\u3002\u8fd9\u662f<\/em><strong>\u53ca\u5176<\/strong><em>\u6162\u7684\u3002<\/em><\/p>\n<\/blockquote>\n\n\n\n<p><strong>2022-10-25\u66f4\u65b0<\/strong>\uff1a\u8fd9\u4e00\u6bb5\u5f15\u7528\u7279\u6307\u5728React\u5e76\u53d1\u6a21\u5f0f\u4e0b\u7684\u6027\u80fd\uff0c\u6ca1\u6709\u4f7f\u7528<code>useInsertionEffect<\/code>\u3002\u5982\u679c\u4f60\u60f3\u6df1\u5165\u4e86\u89e3\u8fd9\u4e9b\u5185\u5bb9\uff0c\u5efa\u8bae\u4f60\u5b8c\u6574\u5730\u9605\u8bfb\u5b8c\u8fd9\u7bc7\u8ba8\u8bba\u3002\u611f\u8c22Dan Abramov\u5728Twitter\u4e0a<a href=\"https:\/\/twitter.com\/dan_abramov\/status\/1584838817982590976\" data-type=\"URL\" data-id=\"https:\/\/twitter.com\/dan_abramov\/status\/1584838817982590976\" target=\"_blank\" rel=\"noreferrer noopener\">\u6307\u51fa<\/a>\u8fd9\u4e00\u4e0d\u51c6\u786e\u4e4b\u5904\u3002<\/p>\n\n\n\n<p>\u6700\u574f\u7684\u662f\u8fd9\u4e2a\u95ee\u9898\u4e0d\u662f\u4e00\u4e2a\u53ef\u4ee5\u4fee\u590d\u7684\u95ee\u9898\uff08\u5982\u679c\u4f7f\u7528\u8fd0\u884c\u65f6CSS-in-JS\uff09\u3002\u8fd0\u884c\u65f6CSS-in-JS\u5e93\u5728\u7ec4\u4ef6\u6e32\u67d3\u65f6\u63d2\u5165\u65b0\u7684\u6837\u5f0f\u89c4\u5219\uff0c\u8fd9\u4ece\u5e95\u5c42\u6765\u8bf4\u5bf9\u6027\u80fd\u662f\u4e0d\u597d\u7684\u3002<\/p>\n\n\n\n<p>2. <strong>\u4f7f\u7528CSS-in-JS\u4f1a\u5bfc\u81f4\u975e\u5e38\u591a\u7684\u9519\u8bef\uff0c\u5c24\u5176\u662f\u4f7f\u7528SSR\u6216\u8005\u7ec4\u4ef6\u5e93<\/strong>\u3002\u5728Emotion\u7684GitHub\u4ed3\u5e93\u4e2d\uff0c\u6211\u4eec\u6536\u5230\u4e86\u5927\u91cf\u7684\u8fd9\u7c7b\u95ee\u9898\uff1a<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><em>\u6211\u4eec\u5728SSR\u548cMUI\/Mantine\/(\u53e6\u4e00\u4e2aEmotion\u9a71\u52a8\u7684\u7ec4\u4ef6\u5e93)\u4e2d\u4f7f\u7528Emotion\uff0c\u4f46\u662f\u6709\u4e00\u4e9b\u95ee\u9898\uff0c\u56e0\u4e3a\u2026\u2026<\/em><\/p>\n<\/blockquote>\n\n\n\n<p>\u867d\u7136\u4ed6\u4eec\u7684\u6839\u672c\u539f\u56e0\u5bf9\u4e8e\u6bcf\u4e2a\u95ee\u9898\u6765\u8bf4\u90fd\u4e0d\u76f8\u540c\uff0c\u4f46\u662f\u4ed6\u4eec\u90fd\u6709\u4e00\u4e9b\u5171\u540c\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u6b21\u52a0\u8f7d\u591a\u4e2aEmotion\u5b9e\u4f8b\u3002\u5373\u4f7f\u8fd9\u591a\u4e2aEmotion\u5b9e\u4f8b\u90fd\u662f\u540c\u4e00\u4e2a\u7248\u672c\uff0c\u4f46\u4ecd\u7136\u80fd\u5bfc\u81f4\u95ee\u9898\u3002\uff08<a href=\"https:\/\/github.com\/emotion-js\/emotion\/issues\/2639\" target=\"_blank\" rel=\"noreferrer noopener\">\u793a\u4f8b\u95ee\u9898<\/a>\uff09<\/li>\n\n\n\n<li>\u7ec4\u4ef6\u5e93\u901a\u5e38\u6ca1\u6cd5\u8ba9\u4f60\u63a7\u5236\u63d2\u5165\u6837\u5f0f\u7684\u987a\u5e8f\u3002\uff08<a href=\"https:\/\/github.com\/emotion-js\/emotion\/issues\/2803\" target=\"_blank\" rel=\"noreferrer noopener\">\u793a\u4f8b\u95ee\u9898<\/a>\uff09<\/li>\n\n\n\n<li>Emotion\u7684SSR\u652f\u6301\u5728React 17\u548cReact 18\u4e2d\u8868\u73b0\u4e0d\u4e00\u81f4\u3002\u5fc5\u987b\u4e0eReact 18\u7684\u6d41\u5f0fSSR\u517c\u5bb9\u3002\uff08<a href=\"https:\/\/github.com\/emotion-js\/emotion\/issues\/2725\" target=\"_blank\" rel=\"noreferrer noopener\">\u793a\u4f8b\u95ee\u9898<\/a>\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u76f8\u4fe1\u6211\uff0c\u8fd9\u4e9b\u590d\u6742\u6027\u7684\u6765\u6e90\u90fd\u53ea\u662f\u51b0\u5c71\u4e00\u89d2\u3002\uff08\u5982\u679c\u4f60\u89c9\u5f97\u81ea\u5df1\u5f88\u52c7\u6562\uff0c\u53ef\u4ee5\u770b\u4e00\u4e0b<a href=\"https:\/\/github.com\/emotion-js\/emotion\/blob\/8a163746f0de5c6a43052db37f14c36d703be7b9\/packages\/styled\/types\/base.d.ts\" target=\"_blank\" rel=\"noreferrer noopener\"><code>@emotion\/styled<\/code>\u7684TypeScript\u5b9a\u4e49<\/a>\u3002\uff09<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u6027\u80fd\u6df1\u5165\u63a2\u8ba8<\/strong><\/h2>\n\n\n\n<p>\u5728\u8fd9\u4e00\u70b9\u4e0a\u5f88\u660e\u786e\uff0c\u8fd0\u884c\u65f6CSS-in-JS\u57fa\u53cb\u660e\u663e\u7684\u4f18\u70b9\uff0c\u4e5f\u6709\u660e\u663e\u7684\u7f3a\u70b9\u3002\u8981\u7406\u89e3\u4e3a\u4ec0\u4e48\u6211\u4eec\u56e2\u961f\u653e\u5f03\u4e86\u8fd9\u4e2a\u6280\u672f\uff0c\u6211\u4eec\u9700\u8981\u63a2\u7d22\u4e00\u4e0bCSS-in-JS\u5bf9\u6027\u80fd\u7684\u771f\u5b9e\u5f71\u54cd\u3002<\/p>\n\n\n\n<p>\u672c\u8282\u5c06\u91cd\u70b9\u4ecb\u7ecdEmotion\u7684\u6027\u80fd\u5f71\u54cd\uff0c<strong>\u56e0\u4e3a\u5b83\u5728Spot\u4ee3\u7801\u5e93\u4e2d\u4f7f\u7528<\/strong>\u3002\u56e0\u6b64\uff0c\u5bf9\u4e8e\u4f60\u7684\u4ee3\u7801\u5e93\u6765\u8bf4\uff0c\u4e0b\u9762\u7684\u6027\u80fd\u6570\u636e\u4e5f\u8bb8\u662f\u4e0d\u4e00\u6837\u7684\u2014\u2014\u56e0\u4e3a\u6709\u5f88\u591a\u79cd\u4f7f\u7528Emotion\u7684\u65b9\u6cd5\uff0c\u800c\u6ca1\u4e00\u79cd\u90fd\u6709\u81ea\u5df1\u7684\u6027\u80fd\u7279\u6027\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5728\u6e32\u67d3\u5185\u90e8\u5e8f\u5217\u5316\u4e0e\u5728\u6e32\u67d3\u5916\u90e8\u5e8f\u5217\u5316<\/strong><\/h3>\n\n\n\n<p><em>\u6837\u5f0f\u5e8f\u5217\u5316<\/em>\u662f\u6307Emotion\u83b7\u53d6CSS\u5b57\u7b26\u4e32\u6216\u5bf9\u8c61\u7136\u540e\u628a\u5b83\u4eec\u8f6c\u5316\u4e3a\u53ef\u4ee5\u63d2\u5165\u6587\u6863\u7684\u666e\u901aCSS\u7684\u8fc7\u7a0b\u3002Emotion\u5728\u5e8f\u5217\u5316\u8fc7\u7a0b\u4e2d\u4e5f\u4f1a\u540c\u65f6\u8ba1\u7b97\u666e\u901aCSS\u7684hash\u2014\u2014\u8fd9\u4e2ahash\u5c31\u662f\u5728\u751f\u6210\u7684css\u540d\u5b57\u4e2d\u770b\u5230\u7684\u503c\uff0c\u4f8b\u5982<code>css-15nl2r3<\/code>\u3002<\/p>\n\n\n\n<p>\u867d\u7136\u6211\u8fd8\u6ca1\u5bf9\u8fd9\u4e2a\u505a\u8fc7\u5177\u4f53\u6d4b\u91cf\uff0c\u6211\u8ba4\u4e3aEmotion\u5bf9\u6027\u80fd\u5f71\u54cd\u7684\u4e00\u4e2a\u91cd\u8981\u56e0\u7d20\u662f\u8fd9\u4e2a\u6837\u5f0f\u5e8f\u5217\u5316\u662f\u5728React\u7684\u6e32\u67d3\u5468\u671f\u5185\u90e8\u8fd8\u662f\u5916\u90e8\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2aEmotion\u6587\u6863\u4e2d\u7684\u4f8b\u5b50\u662f\u5728\u6e32\u67d3\u5185\u90e8\u6267\u884c\u5e8f\u5217\u5316\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function MyComponent() {\n  return (\n    &lt;div\n      css={{\n        backgroundColor: 'blue',\n        width: 100,\n        height: 100,\n      }}\n    \/>\n  );\n}<\/code><\/pre>\n\n\n\n<p>\u6bcf\u6b21\u6e32\u67d3<code>MyComponent<\/code>\u90fd\u4f1a\u91cd\u65b0\u5e8f\u5217\u5316\u8fd9\u4e2a\u6837\u5f0f\u3002\u5982\u679c<code>MyComponent<\/code>\u6e32\u67d3\u975e\u5e38\u9891\u7e41\uff08\u6bd4\u5982\u6bcf\u6b21\u70b9\u51fb\u65f6\uff09\uff0c\u91cd\u590d\u7684\u5e8f\u5217\u5316\u53ef\u80fd\u4f1a\u5bfc\u81f4\u975e\u5e38\u9ad8\u7684\u6027\u80fd\u5f00\u9500\u3002<\/p>\n\n\n\n<p>\u4e00\u79cd\u66f4\u9ad8\u6548\u7684\u65b9\u5f0f\u662f\u964d\u6837\u5f0f\u8868\u79fb\u5230\u7ec4\u4ef6\u4e4b\u5916\uff0c\u8fd9\u6837\u53ea\u4f1a\u5728\u52a0\u8f7d\u8fd9\u4e2a\u6a21\u5757\u65f6\u5e8f\u5217\u5316\u4e00\u6b21\uff0c\u800c\u4e0d\u662f\u5728\u6bcf\u6b21\u6e32\u67d3\u65f6\u5e8f\u5217\u5316\u3002\u53ef\u4ee5\u7528<code>@emotion\/react<\/code>\u4e2d\u7684<code>css<\/code>\u51fd\u6570\u6765\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const myCss = css({\n  backgroundColor: 'blue',\n  width: 100,\n  height: 100,\n});\n\nfunction MyComponent() {\n  return &lt;div css={myCss} \/>;\n}<\/code><\/pre>\n\n\n\n<p>\u5f53\u7136\u4e86\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f60\u5c31\u4e0d\u80fd\u4f7f\u7528props\u4e86\uff0c\u8fd9\u6837\u5c31\u5931\u53bb\u4e86CSS-in-JS\u7684\u4e00\u5927\u5356\u70b9\u3002<\/p>\n\n\n\n<p><strong>\u5728Spot\uff0c\u6211\u4eec\u5728\u6e32\u67d3\u4e2d\u6267\u884c\u6837\u5f0f\u5e8f\u5217\u5316\uff0c\u56e0\u6b64\u4e0b\u9762\u7684\u6027\u80fd\u5206\u6790\u90fd\u5c06\u805a\u7126\u8fd9\u4e00\u60c5\u51b5\u3002<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5bf9Member Browser\u7ec4\u4ef6\u8fdb\u884c\u57fa\u51c6\u6d4b\u8bd5<\/strong><\/h3>\n\n\n\n<p>\u7ec8\u4e8e\u5230\u4e86\u5206\u6790\u6765\u81eaSpot\u7684\u771f\u5b9e\u7ec4\u4ef6\u7684\u65f6\u5019\u4e86\u3002\u6211\u4eec\u5c06\u4f7f\u7528Member Browser\u8fd9\u4e2a\u7ec4\u4ef6\uff0c\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u7b80\u5355\u7684\u5217\u8868\uff0c\u5217\u51fa\u4e86\u56e2\u961f\u4e2d\u7684\u6240\u6709\u6210\u5458\u3002\u51e0\u4e4eMember Browser\u6240\u6709\u7684\u6837\u5f0f\u90fd\u4f7f\u7528\u4e86Emotion\uff0c\u7279\u522b\u662f<code>css<\/code>\u5c5e\u6027\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"311\" src=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-1.png\" alt=\"\" class=\"wp-image-1220\" srcset=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-1.png 880w, https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-1-300x106.png 300w, https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-1-768x271.png 768w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/a><\/figure>\n\n\n\n<p>\u5728\u6d4b\u8bd5\u4e2d\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Member Browser\u5c06\u5c55\u793a20\u4e2a\u7528\u6237\uff0c<\/li>\n\n\n\n<li>\u9879\u76ee\u5217\u8868\u76f8\u5173\u7684<code>React.memo<\/code>\u4f1a\u88ab\u5220\u9664\uff0c<\/li>\n\n\n\n<li>\u6211\u4eec\u4f1a\u5f3a\u5236\u6700\u9876\u5c42\u7684<code>&lt;BrowseMembers><\/code>\u7ec4\u4ef6\u6bcf\u79d2\u6e32\u67d3\u4e00\u6b21\uff0c\u5e76\u8bb0\u5f55\u524d10\u6b21\u6e32\u67d3\u7684\u65f6\u95f4\u3002<\/li>\n\n\n\n<li>\u5173\u95edReact Strict Mode\u3002\uff08\u5b83\u6709\u6548\u5730\u4f7f\u4f60\u5728\u6027\u80fd\u5206\u6790\u5668\u4e2d\u770b\u5230\u7684\u6e32\u67d3\u65f6\u95f4\u7ffb\u500d\u3002\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u6211\u4f7f\u7528React DevTools\u5206\u6790\u4e86\u9875\u9762\uff0c\u524d10\u6b21\u6e32\u67d3\u65f6\u95f4\u7684\u5e73\u5747\u65f6\u95f4\u4e3a<strong>54.3\u6beb\u79d2<\/strong>\u3002<\/p>\n\n\n\n<p>\u6211\u4e2a\u4eba\u8ba4\u4e3a\u4e00\u4e2aReact\u7ec4\u4ef6\u5408\u7406\u7684\u6e32\u67d3\u65f6\u95f4\u5e94\u8be5\u572816\u6beb\u79d2\u6216\u8005\u66f4\u77ed\uff0c\u56e0\u4e3a\u6bcf\u79d260\u5e27\u65f61\u5e27\u7684\u65f6\u95f4\u662f16.67\u6beb\u79d2\u3002Member Browser\u7ec4\u4ef6\u76ee\u524d\u662f\u8fd9\u4e2a\u6570\u5b57\u76843\u500d\uff0c\u56e0\u6b64\u5b83\u662f\u4e00\u4e2a\u76f8\u5f53\u91cd\u91cf\u7ea7\u7684\u7ec4\u4ef6\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u6d4b\u8bd5\u662f\u5728<strong>M1 Max<\/strong>CPU\u4e0a\u6267\u884c\u7684\uff0c\u8fd9\u4e2aCPU\u901f\u5ea6\u8fdc\u8fdc\u8d85\u8fc7\u5e73\u5747\u7528\u6237\u7684\u6c34\u51c6\u3002\u8fd9\u4e2a54.3\u6beb\u79d2\u7684\u6e32\u67d3\u65f6\u95f4\u5728\u5176\u4ed6\u5f31\u4e00\u70b9\u7684\u673a\u5668\u4e0a\u5f88\u5bb9\u6613\u5c31\u8fbe\u5230200\u6beb\u79d2\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5bf9\u706b\u7130\u56fe\u8fdb\u884c\u5206\u6790<\/h3>\n\n\n\n<p>\u8fd9\u662f\u4e0a\u9762\u6d4b\u8bd5\u9879\u76ee\u4e2d<strong>\u5355\u4e2a\u5217\u8868\u9879\u76ee<\/strong>\u7684\u706b\u7130\u56fe\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"188\" src=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-2.png\" alt=\"\" class=\"wp-image-1221\" srcset=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-2.png 880w, https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-2-300x64.png 300w, https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-2-768x164.png 768w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/a><\/figure>\n\n\n\n<p>\u6b63\u5982\u4f60\u6240\u89c1\uff0c\u6709\u5927\u91cf\u7684<code>&lt;Box><\/code>\u548c<code>&lt;Flex><\/code>\u7ec4\u4ef6\u88ab\u6e32\u67d3\u4e86\u2014\u2014\u8fd9\u4e9b\u5c31\u662f\u6211\u4eec\u7684<code>css<\/code>\u5c5e\u6027\u7684\u57fa\u672c\u4f53\u3002\u867d\u7136\u6bcf\u4e2a<code>&lt;Box><\/code>\u53ea\u82b1\u8d39\u4e860.1-0.2\u6beb\u79d2\u6e32\u67d3\uff0c\u7531\u4e8e<code>&lt;Box><\/code>\u7ec4\u4ef6\u6570\u91cf\u5e9e\u5927\uff0c\u5bfc\u81f4\u603b\u65f6\u95f4\u975e\u5e38\u957f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u4e0d\u4f7f\u7528Emotion\uff0c\u5bf9Member Browser\u7ec4\u4ef6\u8fdb\u884c\u57fa\u51c6\u6d4b\u8bd5<\/strong><\/h3>\n\n\n\n<p>\u4e3a\u4e86\u4e86\u89e3\u6709\u591a\u5c11\u6e32\u67d3\u5f00\u9500\u662fEmotion\u9020\u6210\u7684\uff0c\u6211\u7528Sass Modules\u91cd\u5199\u4e86Member Browser\u7ec4\u4ef6\u7684\u6837\u5f0f\u3002\uff08Sass Modules\u4f1a\u5728\u6784\u5efa\u7684\u65f6\u5019\u7f16\u8bd1\u4e3a\u666e\u901aCSS\uff0c\u56e0\u6b64\u4f7f\u7528\u5b83\u4eec\u4e0d\u4f1a\u9020\u6210\u6027\u80fd\u5f71\u54cd\u3002\uff09<\/p>\n\n\n\n<p>\u6211\u91cd\u590d\u4e86\u4e0a\u9762\u7684\u6d4b\u8bd5\uff0c\u524d10\u6b21\u6e32\u67d3\u7684\u5e73\u5747\u503c\u4e3a<strong>27.7\u6beb\u79d2<\/strong>\u3002\u8fd9\u6bd4\u539f\u6765\u7684\u65f6\u95f4<strong>\u51cf\u5c11\u4e8648%<\/strong>\uff01<\/p>\n\n\n\n<p>\u6240\u4ee5\uff0c\u8fd9\u5c31\u662f\u6211\u4eec\u653e\u5f03CSS-in-JS\u7684\u539f\u56e0\uff1a\u8fd0\u884c\u65f6\u6027\u80fd\u5f00\u9500\u592a\u5927\u4e86\u3002<\/p>\n\n\n\n<p>\u91cd\u7533\u4e00\u904d\u4e0a\u9762\u7684\u514d\u8d23\u58f0\u660e\uff1a\u8fd9\u4e2a\u7ed3\u679c\u53ea\u76f4\u63a5\u9002\u7528\u4e8eSpot\u7684\u4ee3\u7801\u5e93\u4ee5\u53ca\u6211\u4eec\u4f7f\u7528Emotion\u7684\u65b9\u5f0f\u3002\u5982\u679c\u4f60\u7684\u4ee3\u7801\u5e93\u4ee5\u66f4\u9ad8\u6548\u7684\u65b9\u5f0f\u4f7f\u7528Emotion\uff08\u6bd4\u5982\u5728\u6e32\u67d3\u4e4b\u5916\u5e8f\u5217\u5316\u6837\u5f0f\uff09\uff0c\u4f60\u53ef\u80fd\u5728\u79fb\u9664\u4e86CSS-in-JS\u4e4b\u540e\u4e5f\u53ea\u80fd\u83b7\u5f97\u8f83\u5c0f\u7684\u6027\u80fd\u63d0\u5347\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u6709\u4eba\u5bf9\u6570\u636e\u611f\u5174\u8da3\u7684\u8bdd\uff0c\u8fd9\u662f\u539f\u59cb\u6570\u636e\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"475\" height=\"344\" src=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-3.png\" alt=\"\" class=\"wp-image-1222\" srcset=\"https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-3.png 475w, https:\/\/fdream.net\/blog\/wp-content\/uploads\/2022\/11\/image-3-300x217.png 300w\" sizes=\"auto, (max-width: 475px) 100vw, 475px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u6211\u4eec\u65b0\u7684\u6837\u5f0f\u7cfb\u7edf<\/h2>\n\n\n\n<p>\u5728\u6211\u4eec\u4e0b\u5b9a\u51b3\u5fc3\u653e\u5f03CSS-in-JS\u4e4b\u540e\uff0c\u663e\u800c\u6613\u89c1\u7684\u95ee\u9898\u662f\uff1a\u6211\u4eec\u5e94\u8be5\u7528\u4ec0\u4e48\u6765\u66ff\u4ee3\u5b83\uff1f\u7406\u60f3\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u60f3\u8981\u4e00\u4e2a\u6837\u5f0f\u7cfb\u7edf\uff0c\u5176\u6027\u80fd\u4e0e\u666e\u901aCSS\u63a5\u8fd1\uff0c\u540c\u65f6\u5c3d\u53ef\u80fd\u5730\u80fd\u4fdd\u7559CSS-in-JS\u7684\u4f18\u70b9\u3002\u4e0b\u9762\u662f\u6211\u5728\u201c\u597d\u7684\u90e8\u5206\u201d\u4e2d\u63cf\u8ff0\u7684CSS-in-JS\u7684\u4e3b\u8981\u597d\u5904\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6837\u5f0f\u662f\u5c40\u90e8\u4f5c\u7528\u7684\u3002<\/li>\n\n\n\n<li>\u6837\u5f0f\u4e0e\u4f7f\u7528\u4ed6\u4eec\u7684\u7ec4\u4ef6\u96c6\u4e2d\u7ba1\u7406\u3002<\/li>\n\n\n\n<li>\u4f60\u53ef\u4ee5\u5728\u6837\u5f0f\u4e2d\u4f7f\u7528JavaScript\u53d8\u91cf\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5982\u679c\u4f60\u5bf9\u90a3\u4e00\u8282\u4ed4\u7ec6\u5173\u6ce8\u8fc7\u7684\u8bdd\uff0c\u4f60\u5e94\u8be5\u8fd8\u8bb0\u5f97\u6211\u8bf4\u8fc7CSS Modules\u4e5f\u63d0\u4f9b\u4e86\u5c40\u90e8\u4f5c\u7528\u57df\u548c\u96c6\u4e2d\u7ba1\u7406\u3002CSS Modules\u7f16\u8bd1\u6210\u666e\u901aCSS\u6587\u4ef6\uff0c\u56e0\u6b64\u4f7f\u7528\u5b83\u4eec\u4e5f\u4e0d\u4f1a\u6709\u8fd0\u884c\u65f6\u6027\u80fd\u5f00\u9500\u3002<\/p>\n\n\n\n<p>\u5728\u6211\u770b\u6765\uff0c\u4f7f\u7528CSS Module\u7684\u4e3b\u8981\u7f3a\u70b9\uff0c\u5f52\u6839\u7ed3\u5e95\uff0c\u5b83\u4ecd\u7136\u662f\u666e\u901aCSS\u2014\u2014\u666e\u901aCSS\u7f3a\u4e4f\u6539\u8fdb\u5f00\u53d1\u4f53\u9a8c\u53ca\u51cf\u5c11\u4ee3\u7801\u91cd\u590d\u7684\u529f\u80fd\u3002\u867d\u7136<a href=\"https:\/\/developer.chrome.com\/blog\/help-css-nesting\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u5d4c\u5957\u9009\u62e9\u5668<\/a>\u5373\u5c06\u8fdb\u5165CSS\uff0c\u4f46\u5b83\u4eec\u8fd8\u6ca1\u6709\u5230\u6765\uff0c\u8fd9\u4e2a\u7279\u6027\u5bf9\u6211\u4eec\u7684\u751f\u6d3b\u8d28\u91cf\u6765\u8bf4\u662f\u4e00\u4e2a\u5de8\u5927\u7684\u63d0\u5347\u3002<\/p>\n\n\n\n<p>\u5e78\u8fd0\u7684\u662f\uff0c\u8fd9\u4e2a\u95ee\u9898\u6709\u4e00\u4e2a\u7b80\u5355\u7684\u89e3\u51b3\u529e\u6cd5\u2014\u2014Sass Modules\uff0c\u5c31\u662f\u7528<a href=\"https:\/\/sass-lang.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Sass<\/a>\u5199\u7684CSS Modules\u3002\u4f60\u53ef\u4ee5\u5728\u5f97\u5230\u5c40\u90e8\u4f5c\u7528\u57df\u7684CSS Modules\u4ee5\u53caSass\u7684\u5f3a\u5927\u6784\u5efa\u65f6\u7279\u6027\uff0c\u800c\u4e0d\u4f1a\u6709\u4efb\u4f55\u8fd0\u884c\u65f6\u6210\u672c\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48Sass Modules\u4f1a\u6210\u4e3a\u6211\u4eec\u672a\u6765\u901a\u7528\u7684\u6837\u5f0f\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u65c1\u6ce8\uff1a\u4f7f\u7528Sass Modules\uff0c\u4f60\u5c06\u65f6\u533aCSS-in-JS\u7684\u597d\u59043\uff08\u5728\u6837\u5f0f\u4e2d\u4f7f\u7528JavaScript\u53d8\u91cf\u7684\u80fd\u529b\uff09\u3002\u4e0d\u8fc7\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u5728Sass\u6587\u4ef6\u4e2d\u4f7f\u7528<code>:export<\/code>\u6765\u5bfc\u51fa\u5e38\u91cf\u7ed9JavaScript\u3002\u8fd9\u4e0d\u662f\u4e3a\u4e86\u65b9\u4fbf\uff0c\u800c\u662f\u4e3a\u4e86\u4fdd\u6301DRY\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u5de5\u5177\u7c7b<\/strong><\/h3>\n\n\n\n<p>\u4eceEmotion\u5207\u6362\u5230Sass Modules\uff0c\u56e2\u961f\u62c5\u5fc3\u7684\u4e00\u4e2a\u95ee\u9898\u662f\u5728\u4f7f\u7528\u516c\u5171\u6837\u5f0f\u65f6\u4f1a\u6ca1\u6709\u90a3\u4e48\u65b9\u4fbf\uff0c\u6bd4\u5982<code>display: flex<\/code>\u3002\u5728\u4ee5\u524d\uff0c\u6211\u4eec\u53ef\u80fd\u8fd9\u6837\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;<em>FlexH<\/em> alignItems=\"center\">...&lt;\/<em>FlexH<\/em>><\/code><\/pre>\n\n\n\n<p>\u8981\u4ec5\u4ec5\u4f7f\u7528Sass Modules\uff0c\u6211\u4eec\u9700\u8981\u6253\u5f00<code>.module.scss<\/code>\u6587\u4ef6\uff0c\u7136\u540e\u521b\u5efa\u4e00\u4e2a\u7c7b\u5305\u542b\u6837\u5f0f<code>display: flex<\/code>\u548c<code>align-items: center<\/code>\u3002\u8fd9\u4e0d\u662f\u4e16\u754c\u672b\u65e5\uff0c\u4f46\u786e\u5b9e\u4e0d\u90a3\u4e48\u65b9\u4fbf\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u6539\u8fdb\u8fd9\u4e2a\u5f00\u53d1\u4f53\u9a8c\uff0c\u6211\u4eec\u51b3\u5b9a\u5f15\u5165\u4e00\u4e2a\u5de5\u5177\u7c7b\u7cfb\u7edf\u3002\u5982\u679c\u4f60\u5bf9\u8fd9\u4e2a\u5de5\u5177\u7c7b\u4e0d\u662f\u5f88\u719f\u6089\uff0c\u5b83\u4eec\u5c31\u662f\u8bbe\u7f6e\u5728\u5143\u7d20\u4e0a\u7684CSS\u7c7b\uff0c\u53ea\u4e0d\u8fc7\u8fd9\u4e2a\u7c7b\u53ea\u5305\u542b\u4e86\u5355\u4e2aCSS\u5c5e\u6027\u3002\u901a\u5e38\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u8054\u5408\u4f7f\u7528\u591a\u4e2a\u5de5\u5177\u7c7b\u6765\u83b7\u5f97\u60f3\u8981\u7684\u6837\u5f0f\u3002\u5bf9\u4e8e\u4e0a\u9762\u7684\u4f8b\u5b50\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u8fd9\u6837\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;div className=\"d-flex align-items-center\"&gt;...&lt;\/div&gt;<\/code><\/pre>\n\n\n\n<p><a href=\"https:\/\/getbootstrap.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bootstrap<\/a>\u548c<a href=\"https:\/\/tailwindcss.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tailwind<\/a>\u662f\u6700\u6d41\u884c\u7684\u63d0\u4f9b\u5de5\u5177\u7c7b\u7684CSS\u6846\u67b6\u3002\u8fd9\u4e9b\u5e93\u5728\u4ed6\u4eec\u7684\u5de5\u5177\u7cfb\u7edf\u4e2d\u90fd\u6295\u5165\u4e86\u5927\u91cf\u7684\u8bbe\u8ba1\u5de5\u4f5c\uff0c\u56e0\u6b64\u91c7\u7528\u5176\u4e2d\u4e00\u4e2a\u800c\u4e0d\u662f\u6211\u4eec\u81ea\u5df1\u91cd\u65b0\u8bbe\u8ba1\u4e2a\u662f\u6700\u5408\u7406\u7684\u3002\u6211\u5df2\u7ecf\u4f7f\u7528\u8fc7Bootstrap\u5f88\u591a\u5e74\u4e86\uff0c\u6240\u4ee5\u6211\u4eec\u9009\u62e9\u4e86Bootstrap\u3002\u867d\u7136\u4f60\u53ef\u4ee5\u8bb2Bootstrap\u5de5\u5177\u7c7b\u4f5c\u4e3a\u4e0e\u6784\u5efa\u7684CSS\u6587\u4ef6\uff0c\u4f46\u6211\u4eec\u9700\u8981\u5b9a\u5236\u8fd9\u4e9b\u7c7b\u53bb\u9002\u5e94\u6211\u4eec\u7684\u6837\u5f0f\u7cfb\u7edf\uff0c\u56e0\u6b64\u6211\u590d\u5236\u4e86Bootstrap\u4e2d\u76f8\u5173\u7684\u90e8\u5206\u4ee3\u7801\u5230\u6211\u4eec\u7684\u9879\u76ee\u4e2d\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u5df2\u7ecf\u5728\u65b0\u7ec4\u4ef6\u4e2d\u4f7f\u7528Sass Modules\u548c\u5de5\u5177\u7c7b\u51e0\u4e2a\u661f\u671f\u4e86\uff0c\u76ee\u524d\u8fd8\u662f\u5f88\u6ee1\u610f\u3002\u5f00\u53d1\u4f53\u9a8c\u63a5\u8fd1\u4e8eEmotion\uff0c\u8fd0\u884c\u65f6\u6027\u80fd\u4e5f\u975e\u5e38\u51fa\u8272\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u65c1\u6ce8\uff1a\u6211\u4eec\u8fd8\u4f7f\u7528\u4e86<a rel=\"noreferrer noopener\" href=\"https:\/\/www.npmjs.com\/package\/typed-scss-modules\" target=\"_blank\">typed-scss-modules<\/a>\u5305\u6765\u4e3a\u6211\u4eec\u7684Sass Modules\u751f\u6210TypeScript\u5b9a\u4e49\u3002\u53ef\u80fd\u8fd9\u4e48\u505a\u7684\u6700\u5927\u597d\u5904\u662f\u4ed6\u53ef\u4ee5\u5141\u8bb8\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u4f3c\u4e8e<a rel=\"noreferrer noopener\" href=\"https:\/\/www.npmjs.com\/package\/classnames\" target=\"_blank\">classnames<\/a>\u7684<code>utils()<\/code>\u5e2e\u52a9\u51fd\u6570\uff0c\u9664\u4e86\u5b83\u53ea\u63a5\u53d7\u6709\u6548\u7684\u5de5\u5177\u7c7b\u540d\u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">\u5173\u4e8e\u7f16\u8bd1\u65f6CSS-in-JS\u7684\u8bf4\u660e<\/h3>\n\n\n\n<p>\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u5173\u6ce8\u8fd0\u884c\u65f6CSS-in-JS\u5e93\uff0c\u5982Emotion\u548cstyled-components\u3002\u6700\u8fd1\uff0c\u6211\u4eec\u770b\u5230\u6709\u8d8a\u6765\u8d8a\u591a\u7684CSS-in-JS\u5e93\u5728\u7f16\u8bd1\u65f6\u5c06\u6837\u5f0f\u8f6c\u6362\u4e3a\u666e\u901aCSS\u3002\u5176\u4e2d\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/compiledcssinjs.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">Compiled<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/vanilla-extract.style\/\" target=\"_blank\" rel=\"noreferrer noopener\">Vanilla Extract<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/linaria.dev\/\" target=\"_blank\" rel=\"noreferrer noopener\">Linaria<\/a><\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e9b\u5e93\u65e8\u5728\u63d0\u4f9b\u4e0e\u8fd0\u884c\u65f6CSS-in-JS\u7c7b\u4f3c\u7684\u4f18\u70b9\uff0c\u4f46\u662f\u4e0d\u4f1a\u964d\u4f4e\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u867d\u7136\u6211\u81ea\u5df1\u6ca1\u6709\u4f7f\u7528\u8fc7\u4efb\u4f55\u7f16\u8bd1\u65f6CSS-in-JS\u5e93\uff0c\u6211\u4ecd\u7136\u8ba4\u4e3a\u4e0eSass Modules\u76f8\u6bd4\uff0c\u4ed6\u4eec\u6709\u4e00\u4e9b\u7f3a\u70b9\u3002\u8fd9\u4e9b\u662f\u6211\u5728\u770bCompiled\u8fd9\u4e2a\u5e93\u65f6\u770b\u5230\u7684\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53\u9996\u6b21\u52a0\u8f7d\u7ec4\u4ef6\u65f6\uff0c\u4ecd\u7136\u4f1a\u63d2\u5165\u6837\u5f0f\uff0c\u8fd9\u4f1a\u5f3a\u5236\u6d4f\u89c8\u5668\u53bb\u91cd\u65b0\u8ba1\u7b97\u6240\u6709DOM\u8282\u70b9\u7684\u6837\u5f0f\u3002\uff08\u8fd9\u4e2a\u7f3a\u70b9\u5728\u201c\u4e11\u964b\u7684\u90e8\u5206\u201d\u4e2d\u6709\u8ba8\u8bba\u3002\uff09<\/li>\n\n\n\n<li>\u5728<a rel=\"noreferrer noopener\" href=\"https:\/\/compiledcssinjs.com\/#speed-up-your-styles\" target=\"_blank\">\u8fd9\u4e2a\u793a\u4f8b<\/a>\u4e2d\uff0c\u52a8\u6001\u6837\u5f0f\u6bd4\u5982<code>color<\/code>\u5c5e\u6027\u4e0d\u80fd\u5728\u6784\u5efa\u65f6\u63d0\u53d6\uff0c\u56e0\u6b64Compiled\u901a\u8fc7\u4f7f\u7528<code>style<\/code>\u5c5e\u6027\u6dfb\u52a0\u4e86\u4e00\u4e2aCSS\u53d8\u91cf\uff08\u5c31\u662f\u5185\u8054\u6837\u5f0f\uff09\u3002\u5185\u8054\u6837\u5f0f\u5728\u5e94\u7528\u5230\u8bb8\u591a\u5143\u7d20\u65f6\u4f1a\u5bfc\u81f4\u6027\u80fd\u6b20\u4f73\u3002<\/li>\n\n\n\n<li><a href=\"https:\/\/compiledcssinjs.com\/#speed-up-your-styles\" target=\"_blank\" rel=\"noreferrer noopener\">\u8fd9\u91cc<\/a>\u663e\u793a\u8fd9\u4e2a\u5e93\u4ecd\u7136\u5728React\u6811\u4e2d\u63d2\u5165\u4e86\u6837\u677f\u7ec4\u4ef6\u3002\u8fd9\u4f1a\u548cCSS-in-JS\u4e00\u6837\u8ba9React DevTools\u53d8\u5f97\u6df7\u4e71\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u7ed3\u8bba<\/strong><\/h2>\n\n\n\n<p>\u611f\u8c22\u60a8\u9605\u8bfb\u672c\u6587\uff0c\u6df1\u5165\u4e86\u89e3\u8fd0\u884c\u65f6CSS-in-JS\u3002\u50cf\u5176\u4ed6\u6280\u672f\u4e00\u6837\uff0c\u5b83\u6709\u5176\u81ea\u8eab\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\u3002\u6700\u7ec8\uff0c\u4f5c\u4e3a\u5f00\u53d1\u4eba\u5458\uff0c\u4f60\u9700\u8981\u8bc4\u4f30\u8fd9\u4e9b\u4f18\u7f3a\u70b9\uff0c\u7136\u540e\u5c31\u8be5\u6280\u672f\u662f\u5426\u9002\u5408\u4f60\u7684\u6848\u4f8b\u505a\u51fa\u660e\u667a\u7684\u51b3\u5b9a\u3002\u5bf9\u4e8e\u6211\u4eecSpot\u6765\u8bf4\uff0cEmotion\u5e26\u6765\u7684\u8fd0\u884c\u65f6\u5f00\u9500\u8fdc\u8d85\u8fc7\u5b83\u5e26\u6765\u7684\u5f00\u53d1\u4f53\u9a8c\uff0c\u5c24\u5176\u662f\u8003\u8651\u5230Sass Module\u8fd9\u4e2a\u66ff\u4ee3\u65b9\u6848\u4ecd\u7136\u6709\u5f88\u597d\u7684\u5f00\u53d1\u4f53\u9a8c\u540c\u65f6\u63d0\u4f9b\u975e\u5e38\u51fa\u8272\u7684\u6027\u80fd\u65f6\u3002<\/p>\n\n\n\n<p>\u539f\u6587\u94fe\u63a5\uff1a<a href=\"https:\/\/dev.to\/srmagura\/why-were-breaking-up-wiht-css-in-js-4g9b\">Why We&#8217;re Breaking Up with CSS-in-JS &#8211; DEV Community \ud83d\udc69\u200d\ud83d\udcbb\ud83d\udc68\u200d\ud83d\udcbb<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u662fSam\uff0cSpot\u7684\u4e00\u4f4d\u8f6f\u4ef6\u5de5\u7a0b\u5e08\uff0c\u4e5f\u662fEmotion\u5e93\u7b2c\u4e8c\u6d3b\u8dc3\u7684\u7ef4\u62a4\u8005\u3002Emotion\u662f\u4e00\u4e2a\u5728React\u9879\u76ee\u4e2d\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684CSS-in-JS\u5e93\u3002\u8fd9\u7bc7\u6587\u7ae0\u5c06\u6df1\u5165\u63a2\u7a76\u6700\u521d\u5438\u5f15\u6211\u4f7f\u7528CSS-in-JS\u7684\u539f\u56e0\uff0c\u4ee5\u53ca\u4e3a\u4ec0\u4e48\u6211\uff08\u53caSpot\u56e2\u961f\u7684\u5176\u4ed6\u6210\u5458\uff09\u53c8\u51b3\u5b9a\u653e\u5f03\u5b83\u3002 \u6211\u4eec\u5c06\u4eceCSS-in-JS\u7684\u6982\u8ff0\u5f00\u59cb\uff0c\u5e76\u7b80\u8981\u4ecb\u7ecd\u4e00\u4e0b\u5b83\u7684\u4f18\u7f3a\u70b9\u3002\u7136\u540e\uff0c\u6211\u4eec\u518d\u6df1\u5165\u63a2\u7a76\u5728CSS-in-JS\u5728Spot\u4e0a\u5f15\u53d1\u7684\u6027\u80fd\u95ee\u9898\uff0c\u4ee5\u53ca\u5982\u4f55\u907f\u514d\u5b83\u3002 \u4ec0\u4e48\u662fCSS-in-JS? \u987e\u540d\u601d\u4e49\uff0cCSS-in-JS\u5141\u8bb8\u4f60\u76f4\u63a5\u5728JavaScript\u6216TypeScript\u4e2d\u5199\u5165CSS\u6765\u8bbe\u7f6e\u4f60\u7684React\u7ec4\u4ef6\u6837\u5f0f\uff1a styled-components\u548cEmotion\u662fReact\u793e\u533a\u4e2d\u6700\u53d7\u6b22\u8fce\u7684CSS-in-JS\u5e93\u3002\u867d\u7136\u6211\u53ea\u4f7f\u7528\u4e86 Emotion\uff0c\u4f46\u6211\u76f8\u4fe1\u672c\u6587\u4e2d\u7684\u51e0\u4e4e\u6240\u6709\u8981\u70b9\u4e5f\u9002\u7528\u4e8estyled-components\u3002 \u672c\u6587\u5c06\u4e3b\u8981\u805a\u7126\u4e8e\u8fd0\u884c\u65f6CSS-in-JS\uff0c\u8fd9\u540c\u65f6\u5305\u542b\u4e86styled-components\u548cEmotion\u3002\u8fd0\u884c\u65f6CSS-in-JS\u7b80\u5355\u6765\u8bf4\u5c31\u662f\u8fd9\u4e2a\u5e93\u4f1a\u5728\u5e94\u7528\u8fd0\u884c\u7684\u65f6\u5019\u6765\u89e3\u91ca\u548c\u5e94\u7528\u4f60\u7684\u6837\u5f0f\u3002\u6211\u4eec\u5c06\u4f1a\u5728\u6587\u7ae0\u672b\u5c3e\u7b80\u8981\u8ba8\u8bba\u7f16\u8bd1\u65f6CSS-in-JS\u3002 \u597d\u7684\u3001\u574f\u7684\u53caCSS-in-JS\u7684\u4e11\u964b \u597d\u7684\u90e8\u5206 1. \u5c40\u90e8\u4f5c\u7528\u57df\u6837\u5f0f\u3002\u5728\u901a\u5e38\u5199\u666e\u901aCSS\u65f6\uff0c\u5f88\u5bb9\u6613\u4e0d\u5c0f\u5fc3\u610f\u5916\u5730\u6269\u5927\u6837\u5f0f\u7684\u4f5c\u7528\u8303\u56f4\u3002\u6bd4\u5982\uff0c\u5f53\u4f60\u5728\u505a\u4e00\u4e2a\u5217\u8868\u65f6\uff0c\u5e0c\u671b\u6bcf\u4e00\u884c\u90fd\u6709\u4e00\u4e2a\u8fb9\u8ddd\u548c\u4e00\u4e2a\u8fb9\u6846\u3002\u4f60\u53ef\u80fd\u4f1a\u8fd9\u6837\u5199CSS\uff1a \u51e0\u4e2a\u6708\u4e4b\u540e\uff0c\u4f60\u5df2\u7ecf\u5b8c\u5168\u5fd8\u8bb0\u4e86\u8fd9\u4e2a\u5217\u8868\uff0c\u4f60\u53c8\u53e6\u5916\u521b\u5efa\u4e86\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u8fd9\u4e2a\u7ec4\u4ef6\u4e5f\u6709\u4e00\u884c\u4e00\u884c\u7684\u89c6\u56fe\u3002\u81ea\u7136\u800c\u7136\u5730\uff0c\u4f60\u7ed9\u8fd9\u4e9b\u5143\u7d20\u8bbe\u7f6e\u4e86className=&#8221;row&#8221;\u3002\u73b0\u5728\u8fd9\u4e2a\u65b0\u7ec4\u5efa\u91cc\u9762\u7684\u6bcf\u4e00\u884c\u90fd\u6709\u4e86\u4e0d\u597d\u770b\u7684\u8fb9\u8ddd\uff0c\u800c\u4e14\u4f60\u8fd8\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\uff01\u867d\u7136\u8fd9\u79cd\u95ee\u9898\u53ef\u4ee5\u7528\u66f4\u957f\u7684\u7c7b\u540d\u6216\u8005\u66f4\u7cbe\u786e\u7684\u9009\u62e9\u5668\u6765\u89e3\u51b3\uff0c\u4f46\u662f\u8fd9\u4ecd\u7136\u8981\u7531\u5f00\u53d1\u4eba\u5458\u6765\u4fdd\u8bc1\u6ca1\u6709\u7c7b\u540d\u51b2\u7a81\u3002 CSS-in-JS\u901a\u8fc7\u9ed8\u8ba4\u6837\u5f0f\u4e3a\u5c40\u90e8\u4f5c\u7528\u57df\u5b8c\u5168\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u3002\u5982\u679c\u4f60\u8fd9\u6837\u6765\u5199\u4f60\u7684\u5217\u8868\u7684\u8bdd\uff1a \u8fb9\u8ddd\u548c\u8fb9\u6846\u4e0d\u53ef\u80fd\u610f\u5916\u5730\u7528\u4e8e\u4e0d\u76f8\u5173\u7684\u5143\u7d20\u3002 \u5907\u6ce8\uff1aCSS Modules \u540c\u6837\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u5c40\u90e8\u4f5c\u7528\u57df\u6837\u5f0f\u3002 2. \u96c6\u4e2d\u7ba1\u7406\u3002\u5982\u679c\u4f60\u4f7f\u7528\u666e\u901aCSS\uff0c\u4f60\u53ef\u80fd\u4f1a\u628a\u6240\u6709\u7684.css\u6587\u4ef6\u90fd\u653e\u5728src\/styles\u76ee\u5f55\u4e0b\uff0c\u800c\u4f60\u6240\u6709\u7684React\u7ec4\u4ef6\u90fd\u5728src\/components\u4e0b\u9762\u3002\u5f53\u5e94\u7528\u7684\u89c4\u6a21\u6269\u5927\u65f6\uff0c\u5c31\u5f88\u96be\u533a\u5206\u54ea\u4e2a\u6837\u5f0f\u8868\u662f\u54ea\u4e2a\u7ec4\u4ef6\u5728\u4f7f\u7528\u7684\u4e86\u3002\u901a\u5e38\u8fd9\u4e2a\u65f6\u5019\uff0c\u4f60\u7684CSS\u4ee3\u7801\u91cc\u9762\u5c31\u4f1a\u6709\u5f88\u591a\u65e0\u7528\u7684\u4ee3\u7801\uff0c\u56e0\u4e3a\u4f60\u4e5f\u6ca1\u529e\u6cd5\u533a\u5206\u54ea\u4e9b\u4ee3\u7801\u662f\u6ca1\u6709\u88ab\u4f7f\u7528\u7684\u3002 \u4e00\u79cd\u66f4\u597d\u7684\u7ec4\u7ec7\u4ee3\u7801\u7684\u65b9\u5f0f\u662f\uff0c\u628a\u4e00\u4e2a\u7ec4\u4ef6\u76f8\u5173\u7684\u6240\u6709\u5185\u5bb9\u90fd\u653e\u5728\u540c\u4e00\u4e2a\u5730\u65b9\u3002\u8fd9\u79cd\u505a\u6cd5\u88ab\u79f0\u4e3a\u96c6\u4e2d\u7ba1\u7406\uff0c\u5728Kent C. Dodds\u7684\u4e00\u7bc7\u4f18\u79c0\u7684\u535a\u6587\u4e2d\u6709\u4ecb\u7ecd\u3002 \u95ee\u9898\u5728\u4e8e\u4f7f\u7528\u666e\u901aCSS\u65f6\u5f88\u96be\u5b9e\u73b0\u96c6\u4e2d\u7ba1\u7406\uff0c\u56e0\u4e3aCSS\u548cJavaScript\u5fc5\u987b\u653e\u5728\u5355\u72ec\u7684\u6587\u4ef6\u5f53\u4e2d\uff0c\u800c\u4e0d\u7ba1\u4f60\u7684.css\u6587\u4ef6\u653e\u5728\u54ea\u91cc\uff0c\u4f60\u7684\u6837\u5f0f\u53c8\u4f1a\u88ab\u5168\u5c40\u4f7f\u7528\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u4f60\u4f7f\u7528\u4e86CSS-in-JS\uff0c\u4f60\u53ef\u4ee5\u76f4\u63a5\u5728React\u7ec4\u4ef6\u4e2d\u5199\u76f8\u5173\u7684\u6837\u5f0f\u3002\u5982\u679c\u64cd\u4f5c\u6b63\u786e\uff0c\u8fd9\u5c06\u5927\u5927\u5730\u63d0\u9ad8\u4f60\u7684\u5e94\u7528\u7684\u53ef\u7ef4\u62a4\u6027\u3002 \u5907\u6ce8\uff1aCSS Modules \u4e5f\u5141\u8bb8\u4f60\u5c06\u6837\u5f0f\u4e0e\u7ec4\u4ef6\u96c6\u4e2d\u7ba1\u7406\uff0c\u5373\u4f7f\u4ed6\u4eec\u4e0d\u5728\u540c\u4e00\u6587\u4ef6\u4e2d\u3002 3. \u53ef\u4ee5\u5728\u6837\u5f0f\u4e2d\u4f7f\u7528JavaScript\u53d8\u91cf\u3002CSS-in-JS\u5141\u8bb8\u5728\u6837\u5f0f\u89c4\u5219\u4e2d\u5f15\u7528JavaScript\u53d8\u91cf\uff0c\u6bd4\u5982\uff1a \u6b63\u5982\u8fd9\u4e2a\u4f8b\u5b50\u6240\u793a\uff0c\u4f60\u53ef\u4ee5\u5728CSS-in-JS\u6837\u5f0f\u4e2d\u540c\u65f6\u4f7f\u7528JavaScript\u5e38\u91cf\uff08\u5982colors\uff09\u548cReact props\/state\uff08\u5982fontSize\uff09\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5728\u6837\u5f0f\u4e2d\u4f7f\u7528JavaScript\u5e38\u91cf\u80fd\u591f\u51cf\u5c11\u91cd\u590d\uff0c\u56e0\u4e3a\u76f8\u540c\u7684\u5e38\u91cf\u4e0d\u7528\u540c\u65f6\u5b9a\u4e49CSS\u53d8\u91cf\u548cJavaScript\u5e38\u91cf\u3002\u4f7f\u7528props\u548cstate\u4f7f\u5f97\u4f60\u6709\u80fd\u529b\u521b\u5efa\u53ef\u4ee5\u9ad8\u5ea6\u5b9a\u5236\u6837\u5f0f\u7684\u7ec4\u4ef6\uff0c\u800c\u4e0d\u7528\u4f7f\u7528\u5185\u8054\u6837\u5f0f\u3002\uff08\u5f53\u76f8\u540c\u7684\u6837\u5f0f\u5e94\u7528\u4e8e\u8bb8\u591a\u5143\u7d20\u65f6\uff0c\u5185\u8054\u6837\u5f0f\u7684\u6027\u80fd\u5e76\u4e0d\u7406\u60f3\u3002\uff09 \u4e2d\u7acb\u7684\u90e8\u5206 1. \u5b83\u662f\u70ed\u95e8\u7684\u65b0\u6280\u672f\u3002\u8bb8\u591aWeb\u5f00\u53d1\u8005\uff0c\u5305\u62ec\u6211\u81ea\u5df1\uff0c\u90fd\u8fc5\u901f\u4f4e\u91c7\u7528\u4e86JavaScript\u793e\u533a\u4e2d\u6700\u70ed\u95e8\u7684\u65b0\u6280\u672f\u3002\u4e00\u65b9\u9762\u6765\u8bf4\u8fd9\u662f\u7406\u6027\u7684\uff0c\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u65b0\u7684\u5e93\u548c\u6846\u67b6\u90fd\u5df2\u7ecf\u88ab\u8bc1\u660e\u76f8\u6bd4\u4e4b\u524d\u7684\u5de5\u5177\u6765\u8bf4\u6709\u4e86\u5de8\u5927\u7684\u6539\u8fdb\u3002\uff08\u60f3\u60f3React\u76f8\u6bd4\u65e9\u8d77\u7684jQuery\u63d0\u9ad8\u4e86\u591a\u5c11\u751f\u4ea7\u529b\uff09\u3002\u53e6\u4e00\u65b9\u9762\u6765\u8bb2\uff0c\u6211\u4eec\u5bf9\u5168\u65b0\u5de5\u5177\u7684\u75f4\u8ff7\u4e5f\u4ec5\u4ec5\u53ea\u662f\u4e00\u79cd\u75f4\u8ff7\u3002\u6211\u4eec\u5bb3\u6015\u9519\u8fc7\u4e0b\u4e00\u4e2a\u5927\u4e8b\u4ef6\uff0c\u5bfc\u81f4\u6211\u4eec\u5728\u91c7\u7528\u65b0\u5de5\u5177\u6216\u8005\u6846\u67b6\u65f6\u4f1a\u5ffd\u89c6\u5b83\u771f\u6b63\u7684\u7f3a\u70b9\u3002\u6211\u8ba4\u4e3a\u8fd9\u4e5f\u662fCSS-in-JS\u88ab\u5e7f\u6cdb\u91c7\u7528\u7684\u4e00\u4e2a\u56e0\u7d20\u2014\u2014\u81f3\u5c11\u5bf9\u6211\u6765\u8bf4\u662f\u8fd9\u6837\u3002 \u574f\u7684\u90e8\u5206 1. CSS-in-JS\u589e\u52a0\u4e86\u8fd0\u884c\u65f6\u5f00\u9500\u3002\u5f53\u7ec4\u4ef6\u6e32\u67d3\u7684\u65f6\u5019\uff0cCSS-in-JS\u5e93\u5fc5\u987b\u628a\u6837\u5f0f\u5e8f\u5217\u5316\u4e3a\u666e\u901aCSS\uff0c\u4ee5\u4fbf\u63d2\u5165\u5230\u6587\u6863\u4e2d\u3002\u5f88\u660e\u663e\uff0c\u8fd9\u4f1a\u5360\u7528\u989d\u5916\u7684CPU\u5468\u671f\uff0c\u4f46\u662f\u5b83\u662f\u5426\u4f1a\u5bf9\u4f60\u7684\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u4ea7\u751f\u660e\u663e\u7684\u5f71\u54cd\uff1f\u6211\u4eec\u5c06\u5728\u4e0b\u4e00\u8282\u4e2d\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e2a\u95ee\u9898\u3002 2. CSS-in-JS\u589e\u52a0\u4e86\u5305\u7684\u4f53\u79ef\u3002\u8fd9\u662f\u4e00\u4e2a\u663e\u800c\u6613\u89c1\u7684\u95ee\u9898\u2014\u2014\u6bcf\u4e2a\u8bbf\u95ee\u4f60\u7f51\u7ad9\u7684\u4eba\u90fd\u9700\u8981\u4e0b\u8f7dCSS-in-JS\u5e93\u3002Emotion\u5728\u538b\u7f29\u540e\u67097.9KB\uff0cstyled-components\u670912.7KB\u3002\u867d\u7136\u8fd9\u4e24\u4e2a\u5e93\u90fd\u4e0d\u662f\u5f88\u5927\uff0c\u4f46\u662f\u5f53\u5e93\u591a\u4ee5\u540e\u52a0\u8d77\u6765\u5c31\u5927\u4e86\u3002\uff08\u4f5c\u4e3a\u5bf9\u6bd4react\u548creact-dom\u52a0\u8d77\u6765\u662f44.5KB\u3002\uff09 3. CSS-in-JS\u4f7fReact DevTools\u66f4\u52a0\u6df7\u4e71\u3002\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u4f7f\u7528\u4e86css\u5c5e\u6027\u7684\u5143\u7d20\u6765\u8bf4\uff0cEmotion\u90fd\u4f1a\u6e32\u67d3&lt;EmotionCssPropInternal>\u548c&lt;Insertion>\u4e24\u4e2a\u7ec4\u4ef6\u3002\u5982\u679c\u4f60\u5728\u5f88\u591a\u5143\u7d20\u4e0a\u90fd\u4f7f\u7528\u4e86css\uff0cEmotion\u7684\u5185\u90e8\u7ec4\u4ef6\u4f1a\u8ba9React DevTools\u53d8\u5f97\u975e\u5e38\u6df7\u4e71\uff0c\u5c31\u50cf\u4e0b\u9762\u7684\u8fd9\u4e2a\uff1a \u4e11\u964b\u7684\u90e8\u5206 1. \u9891\u7e41\u5730\u63d2\u5165CSS\u89c4\u5219\u4f1a\u5bfc\u81f4\u6d4f\u89c8\u5668\u505a\u8bb8\u591a\u989d\u5916\u7684\u5de5\u4f5c\u3002React\u6838\u5fc3\u6210\u5458\u53caReact Hooks\u7684\u8bbe\u8ba1\u8005Sebastian Markb\u00e5ge\u5728React 18\u5de5\u4f5c\u7ec4\u4e2d\u5199\u4e86\u4e00\u7bc7\u5185\u5bb9\u5145\u5b9e\u7684\u8ba8\u8bba\uff0c\u5185\u5bb9\u6d89\u53caCSS-in-JS\u5e93\u8981\u5982\u4f55\u4fee\u6539\u624d\u80fd\u4e0eReact 18\u914d\u5408\u4f7f\u7528\uff0c\u4ee5\u53ca\u8fd0\u884c\u65f6CSS-in-JS\u7684\u672a\u6765\u3002\u4ed6\u7279\u522b\u5730\u5199\u9053\uff1a \u5728\u5e76\u53d1\u6e32\u67d3\u4e2d\uff0cReact\u53ef\u4ee5\u5728\u6e32\u67d3\u5668\u548c\u6d4f\u89c8\u5668\u4e4b\u95f4\u5411\u6d4f\u89c8\u5668\u8ba9\u6b65\u3002\u5982\u679c\u4f60\u5728\u4e00\u4e2a\u7ec4\u4ef6\u4e2d\u63d2\u5165\u4e86\u4e00\u6761\u65b0\u89c4\u5219\uff0c\u90a3\u4e48React\u5c31\u4f1a\u8ba9\u6b65\uff0c\u8fd9\u65f6\u5019\u6d4f\u89c8\u5668\u5c31\u4f1a\u68c0\u67e5\u8fd9\u4e9b\u89c4\u5219\u662f\u5426\u9002\u7528\u4e8e\u73b0\u6709\u7684\u6811\u3002\u56e0\u6b64\u5b83\u4f1a\u91cd\u65b0\u8ba1\u7b97\u5f53\u524d\u7684\u6837\u5f0f\u89c4\u5219\u3002\u63a5\u4e0b\u6765React\u518d\u6e32\u67d3\u4e0b\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u7136\u540e\u7ec4\u4ef6\u53d1\u73b0\u4e86\u65b0\u89c4\u5219\u518d\u91cd\u590d\u4e0a\u9762\u7684\u8fc7\u7a0b\u3002 \u5728React\u6e32\u67d3\u7684\u8fc7\u7a0b\u4e2d\uff0c\u8fd9\u5c06\u5b9e\u9645\u5bfc\u81f4\u6bcf\u4e00\u5e27\u90fd\u4f1a\u9488\u5bf9\u6240\u6709DOM\u8282\u70b9\u8ba1\u7b97CSS\u89c4\u5219\u3002\u8fd9\u662f\u53ca\u5176\u6162\u7684\u3002 2022-10-25\u66f4\u65b0\uff1a\u8fd9\u4e00\u6bb5\u5f15\u7528\u7279\u6307\u5728React\u5e76\u53d1\u6a21\u5f0f\u4e0b\u7684\u6027\u80fd\uff0c\u6ca1\u6709\u4f7f\u7528useInsertionEffect\u3002\u5982\u679c\u4f60\u60f3\u6df1\u5165\u4e86\u89e3\u8fd9\u4e9b\u5185\u5bb9\uff0c\u5efa\u8bae\u4f60\u5b8c\u6574\u5730\u9605\u8bfb\u5b8c\u8fd9\u7bc7\u8ba8\u8bba\u3002\u611f\u8c22Dan Abramov\u5728Twitter\u4e0a\u6307\u51fa\u8fd9\u4e00\u4e0d\u51c6\u786e\u4e4b\u5904\u3002 \u6700\u574f\u7684\u662f\u8fd9\u4e2a\u95ee\u9898\u4e0d\u662f\u4e00\u4e2a\u53ef\u4ee5\u4fee\u590d\u7684\u95ee\u9898\uff08\u5982\u679c\u4f7f\u7528\u8fd0\u884c\u65f6CSS-in-JS\uff09\u3002\u8fd0\u884c\u65f6CSS-in-JS\u5e93\u5728\u7ec4\u4ef6\u6e32\u67d3\u65f6\u63d2\u5165\u65b0\u7684\u6837\u5f0f\u89c4\u5219\uff0c\u8fd9\u4ece\u5e95\u5c42\u6765\u8bf4\u5bf9\u6027\u80fd\u662f\u4e0d\u597d\u7684\u3002 2. &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[107,104,373],"class_list":["post-1218","post","type-post","status-publish","format-standard","hentry","category-coding","tag-CSS","tag-JavaScript","tag-reactjs"],"views":681,"_links":{"self":[{"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/posts\/1218","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/comments?post=1218"}],"version-history":[{"count":0,"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/posts\/1218\/revisions"}],"wp:attachment":[{"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/media?parent=1218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/categories?post=1218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fdream.net\/blog\/wp-json\/wp\/v2\/tags?post=1218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}