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HomeWeb Front-endHTML Tutorial解決 Universal 架構的 CSS Modules 問題_html/css_WEB-ITnose

最近在使用 React 和 Redux 建構一個 Isomorphic JavaScript(Universal)應用。

但是在實作 CSS Modules 的時候,會碰上兩個問題:

  • Server-side 的 Node.js 無法 import *.css。

  • 如果改成使用 process.env.IS_BROWSER 來判斷只在 Client-dide import,那又會碰到 Server-side 與 Client-side render 出來的 DOM 結果不一致的問題。

  • 解決方式:

    安裝 css-modules-require-hook 這個套件:

    npm install css-modules-require-hook --save-dev

    修改 webpack config 的 css-loader 設定:

    // webpack.config.js{  // ...  module: {    loaders: [{      test: /\.css$/,      loader: 'style-loader!css-loader?modules&localIdentName=[name]__[local]___[hash:base64:5]!!postcss-loader'    }]  }  // ...}

    在 Node.js 的 main file 加入 css-modules-require-hook:

    // server.jsrequire('css-modules-require-hook')({  generateScopedName: '[name]__[local]___[hash:base64:5]'});// ...

    注意 generateScopedName 的命名格式,必須與 css-loader 的 localIdentName 保持一致。

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