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                    1-2 常见的构建工具及对比
            
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                    1-6 使用 DevServer
            
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                    1-7 核心概念
            
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                    2-1 Entry
            
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                    2-2 Output
            
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                    2-3 Module
            
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                    2-4 Resolve
            
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                    2-5 Plugins
            
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                    2-6 DevServer
            
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                    2-7 其它配置项
            
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                    2-8 整体配置结构
            
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                    2-9 多种配置类型
            
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                    2-10 配置总结
            
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                    3-1 使用 ES6 语言
            
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                    3-2 使用 TypeScript 语言
            
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                    3-3 使用 Flow 检查器
            
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                    3-4 使用 SCSS
            
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                    3-5 使用 PostCSS
            
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                    3-6 使用 React 框架
            
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                    3-7 使用 Vue 框架
            
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                    3-8 使用 Angular2 框架
            
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                    3-9 为单页应用生成 HTML
            
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                    3-10 管理多个单页应用
            
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                    3-11 构建同构应用
            
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                    3-12 构建 Electron 应用
            
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                    3-13 构建 Npm 模块
            
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                    3-14 构建离线应用
            
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                    3-15 搭配 Npm Script
            
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                    3-16 检查代码
            
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                    3-17 通过 Node.js API 启动 Webpack
            
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                    3-18 使用 Webpack Dev Middleware
            
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                    3-19 加载图片
            
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                    3-20 加载SVG
            
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                    3-21 加载 Source Map
            
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                    3-22 实战总结
            
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                    第4章 优化
            
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                    4-1 缩小文件搜索范围
            
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                    4-2 使用 DllPlugin
            
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                    4-3 使用 HappyPack
            
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                    4-4 使用 ParallelUglifyPlugin
            
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                    4-5 使用自动刷新
            
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                    4-6 开启模块热替换
            
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                    4-7 区分环境
            
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                    4-8 压缩代码
            
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                    4-9 CDN 加速
            
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<li class="chapter " data-level="1.6.10" data-path="4-10使用TreeShaking.html">
  
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                    4-10 使用 Tree Shaking
            
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                    4-11 提取公共代码
            
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                    4-12 按需加载
            
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<li class="chapter " data-level="1.6.13" data-path="4-13使用Prepack.html">
  
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                    4-13 使用 Prepack
            
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<li class="chapter " data-level="1.6.14" data-path="4-14开启ScopeHoisting.html">
  
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                    4-14 开启 Scope Hoisting
            
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                    4-15 输出分析
            
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<li class="chapter " data-level="1.6.16" data-path="4-16优化总结.html">
  
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                    4-16 优化总结
            
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                    5-1 工作原理概括
            
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                    5-2 输出文件分析
            
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                    5-3 编写 Loader
            
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                                <h1 id="4-3-&#x4F7F;&#x7528;-happypack">4-3 &#x4F7F;&#x7528; HappyPack</h1>
<p>&#x7531;&#x4E8E;&#x6709;&#x5927;&#x91CF;&#x6587;&#x4EF6;&#x9700;&#x8981;&#x89E3;&#x6790;&#x548C;&#x5904;&#x7406;&#xFF0C;&#x6784;&#x5EFA;&#x662F;&#x6587;&#x4EF6;&#x8BFB;&#x5199;&#x548C;&#x8BA1;&#x7B97;&#x5BC6;&#x96C6;&#x578B;&#x7684;&#x64CD;&#x4F5C;&#xFF0C;&#x7279;&#x522B;&#x662F;&#x5F53;&#x6587;&#x4EF6;&#x6570;&#x91CF;&#x53D8;&#x591A;&#x540E;&#xFF0C;Webpack &#x6784;&#x5EFA;&#x6162;&#x7684;&#x95EE;&#x9898;&#x4F1A;&#x663E;&#x5F97;&#x4E25;&#x91CD;&#x3002;
&#x8FD0;&#x884C;&#x5728; Node.js &#x4E4B;&#x4E0A;&#x7684; Webpack &#x662F;&#x5355;&#x7EBF;&#x7A0B;&#x6A21;&#x578B;&#x7684;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x8BF4; Webpack &#x9700;&#x8981;&#x5904;&#x7406;&#x7684;&#x4EFB;&#x52A1;&#x9700;&#x8981;&#x4E00;&#x4EF6;&#x4EF6;&#x6328;&#x7740;&#x505A;&#xFF0C;&#x4E0D;&#x80FD;&#x591A;&#x4E2A;&#x4E8B;&#x60C5;&#x4E00;&#x8D77;&#x505A;&#x3002;</p>
<p>&#x6587;&#x4EF6;&#x8BFB;&#x5199;&#x548C;&#x8BA1;&#x7B97;&#x64CD;&#x4F5C;&#x662F;&#x65E0;&#x6CD5;&#x907F;&#x514D;&#x7684;&#xFF0C;&#x90A3;&#x80FD;&#x4E0D;&#x80FD;&#x8BA9; Webpack &#x540C;&#x4E00;&#x65F6;&#x523B;&#x5904;&#x7406;&#x591A;&#x4E2A;&#x4EFB;&#x52A1;&#xFF0C;&#x53D1;&#x6325;&#x591A;&#x6838; CPU &#x7535;&#x8111;&#x7684;&#x5A01;&#x529B;&#xFF0C;&#x4EE5;&#x63D0;&#x5347;&#x6784;&#x5EFA;&#x901F;&#x5EA6;&#x5462;&#xFF1F;</p>
<p><a href="https://github.com/amireh/happypack" target="_blank">HappyPack</a> &#x5C31;&#x80FD;&#x8BA9; Webpack &#x505A;&#x5230;&#x8FD9;&#x70B9;&#xFF0C;&#x5B83;&#x628A;&#x4EFB;&#x52A1;&#x5206;&#x89E3;&#x7ED9;&#x591A;&#x4E2A;&#x5B50;&#x8FDB;&#x7A0B;&#x53BB;&#x5E76;&#x53D1;&#x7684;&#x6267;&#x884C;&#xFF0C;&#x5B50;&#x8FDB;&#x7A0B;&#x5904;&#x7406;&#x5B8C;&#x540E;&#x518D;&#x628A;&#x7ED3;&#x679C;&#x53D1;&#x9001;&#x7ED9;&#x4E3B;&#x8FDB;&#x7A0B;&#x3002;</p>
<blockquote>
<p>&#x7531;&#x4E8E; JavaScript &#x662F;&#x5355;&#x7EBF;&#x7A0B;&#x6A21;&#x578B;&#xFF0C;&#x8981;&#x60F3;&#x53D1;&#x6325;&#x591A;&#x6838; CPU &#x7684;&#x80FD;&#x529B;&#xFF0C;&#x53EA;&#x80FD;&#x901A;&#x8FC7;&#x591A;&#x8FDB;&#x7A0B;&#x53BB;&#x5B9E;&#x73B0;&#xFF0C;&#x800C;&#x65E0;&#x6CD5;&#x901A;&#x8FC7;&#x591A;&#x7EBF;&#x7A0B;&#x5B9E;&#x73B0;&#x3002;</p>
</blockquote>
<h2 id="&#x4F7F;&#x7528;-happypack">&#x4F7F;&#x7528; HappyPack</h2>
<p>&#x5206;&#x89E3;&#x4EFB;&#x52A1;&#x548C;&#x7BA1;&#x7406;&#x7EBF;&#x7A0B;&#x7684;&#x4E8B;&#x60C5; HappyPack &#x90FD;&#x4F1A;&#x5E2E;&#x4F60;&#x505A;&#x597D;&#xFF0C;&#x4F60;&#x6240;&#x9700;&#x8981;&#x505A;&#x7684;&#x53EA;&#x662F;&#x63A5;&#x5165; HappyPack&#x3002;
&#x63A5;&#x5165; HappyPack &#x7684;&#x76F8;&#x5173;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">const</span> path = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;path&apos;</span>);
<span class="hljs-keyword">const</span> ExtractTextPlugin = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;extract-text-webpack-plugin&apos;</span>);
<span class="hljs-keyword">const</span> HappyPack = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;happypack&apos;</span>);

<span class="hljs-built_in">module</span>.exports = {
  <span class="hljs-built_in">module</span>: {
    rules: [
      {
        test: <span class="hljs-regexp">/\.js$/</span>,
        <span class="hljs-comment">// &#x628A;&#x5BF9; .js &#x6587;&#x4EF6;&#x7684;&#x5904;&#x7406;&#x8F6C;&#x4EA4;&#x7ED9; id &#x4E3A; babel &#x7684; HappyPack &#x5B9E;&#x4F8B;</span>
        use: [<span class="hljs-string">&apos;happypack/loader?id=babel&apos;</span>],
        <span class="hljs-comment">// &#x6392;&#x9664; node_modules &#x76EE;&#x5F55;&#x4E0B;&#x7684;&#x6587;&#x4EF6;&#xFF0C;node_modules &#x76EE;&#x5F55;&#x4E0B;&#x7684;&#x6587;&#x4EF6;&#x90FD;&#x662F;&#x91C7;&#x7528;&#x7684; ES5 &#x8BED;&#x6CD5;&#xFF0C;&#x6CA1;&#x5FC5;&#x8981;&#x518D;&#x901A;&#x8FC7; Babel &#x53BB;&#x8F6C;&#x6362;</span>
        exclude: path.resolve(__dirname, <span class="hljs-string">&apos;node_modules&apos;</span>),
      },
      {
        <span class="hljs-comment">// &#x628A;&#x5BF9; .css &#x6587;&#x4EF6;&#x7684;&#x5904;&#x7406;&#x8F6C;&#x4EA4;&#x7ED9; id &#x4E3A; css &#x7684; HappyPack &#x5B9E;&#x4F8B;</span>
        test: <span class="hljs-regexp">/\.css$/</span>,
        use: ExtractTextPlugin.extract({
          use: [<span class="hljs-string">&apos;happypack/loader?id=css&apos;</span>],
        }),
      },
    ]
  },
  plugins: [
    <span class="hljs-keyword">new</span> HappyPack({
      <span class="hljs-comment">// &#x7528;&#x552F;&#x4E00;&#x7684;&#x6807;&#x8BC6;&#x7B26; id &#x6765;&#x4EE3;&#x8868;&#x5F53;&#x524D;&#x7684; HappyPack &#x662F;&#x7528;&#x6765;&#x5904;&#x7406;&#x4E00;&#x7C7B;&#x7279;&#x5B9A;&#x7684;&#x6587;&#x4EF6;</span>
      id: <span class="hljs-string">&apos;babel&apos;</span>,
      <span class="hljs-comment">// &#x5982;&#x4F55;&#x5904;&#x7406; .js &#x6587;&#x4EF6;&#xFF0C;&#x7528;&#x6CD5;&#x548C; Loader &#x914D;&#x7F6E;&#x4E2D;&#x4E00;&#x6837;</span>
      loaders: [<span class="hljs-string">&apos;babel-loader?cacheDirectory&apos;</span>],
      <span class="hljs-comment">// ... &#x5176;&#x5B83;&#x914D;&#x7F6E;&#x9879;</span>
    }),
    <span class="hljs-keyword">new</span> HappyPack({
      id: <span class="hljs-string">&apos;css&apos;</span>,
      <span class="hljs-comment">// &#x5982;&#x4F55;&#x5904;&#x7406; .css &#x6587;&#x4EF6;&#xFF0C;&#x7528;&#x6CD5;&#x548C; Loader &#x914D;&#x7F6E;&#x4E2D;&#x4E00;&#x6837;</span>
      loaders: [<span class="hljs-string">&apos;css-loader&apos;</span>],
    }),
    <span class="hljs-keyword">new</span> ExtractTextPlugin({
      filename: <span class="hljs-string">`[name].css`</span>,
    }),
  ],
};
</code></pre>
<p>&#x4EE5;&#x4E0A;&#x4EE3;&#x7801;&#x6709;&#x4E24;&#x70B9;&#x91CD;&#x8981;&#x7684;&#x4FEE;&#x6539;&#xFF1A;</p>
<ul>
<li>&#x5728; Loader &#x914D;&#x7F6E;&#x4E2D;&#xFF0C;&#x6240;&#x6709;&#x6587;&#x4EF6;&#x7684;&#x5904;&#x7406;&#x90FD;&#x4EA4;&#x7ED9;&#x4E86; <code>happypack/loader</code> &#x53BB;&#x5904;&#x7406;&#xFF0C;&#x4F7F;&#x7528;&#x7D27;&#x8DDF;&#x5176;&#x540E;&#x7684; querystring <code>?id=babel</code> &#x53BB;&#x544A;&#x8BC9; <code>happypack/loader</code> &#x53BB;&#x9009;&#x62E9;&#x54EA;&#x4E2A; HappyPack &#x5B9E;&#x4F8B;&#x53BB;&#x5904;&#x7406;&#x6587;&#x4EF6;&#x3002;</li>
<li>&#x5728; Plugin &#x914D;&#x7F6E;&#x4E2D;&#xFF0C;&#x65B0;&#x589E;&#x4E86;&#x4E24;&#x4E2A; HappyPack &#x5B9E;&#x4F8B;&#x5206;&#x522B;&#x7528;&#x4E8E;&#x544A;&#x8BC9; <code>happypack/loader</code> &#x53BB;&#x5982;&#x4F55;&#x5904;&#x7406; .js &#x548C; .css &#x6587;&#x4EF6;&#x3002;&#x9009;&#x9879;&#x4E2D;&#x7684; <code>id</code> &#x5C5E;&#x6027;&#x7684;&#x503C;&#x548C;&#x4E0A;&#x9762; querystring &#x4E2D;&#x7684; <code>?id=babel</code> &#x76F8;&#x5BF9;&#x5E94;&#xFF0C;&#x9009;&#x9879;&#x4E2D;&#x7684; <code>loaders</code> &#x5C5E;&#x6027;&#x548C; Loader &#x914D;&#x7F6E;&#x4E2D;&#x4E00;&#x6837;&#x3002;</li>
</ul>
<p>&#x5728;&#x5B9E;&#x4F8B;&#x5316; HappyPack &#x63D2;&#x4EF6;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x9664;&#x4E86;&#x53EF;&#x4EE5;&#x4F20;&#x5165; <code>id</code> &#x548C; <code>loaders</code> &#x4E24;&#x4E2A;&#x53C2;&#x6570;&#x5916;&#xFF0C;HappyPack &#x8FD8;&#x652F;&#x6301;&#x5982;&#x4E0B;&#x53C2;&#x6570;&#xFF1A;</p>
<ul>
<li><code>threads</code> &#x4EE3;&#x8868;&#x5F00;&#x542F;&#x51E0;&#x4E2A;&#x5B50;&#x8FDB;&#x7A0B;&#x53BB;&#x5904;&#x7406;&#x8FD9;&#x4E00;&#x7C7B;&#x578B;&#x7684;&#x6587;&#x4EF6;&#xFF0C;&#x9ED8;&#x8BA4;&#x662F;3&#x4E2A;&#xFF0C;&#x7C7B;&#x578B;&#x5FC5;&#x987B;&#x662F;&#x6574;&#x6570;&#x3002;</li>
<li><code>verbose</code> &#x662F;&#x5426;&#x5141;&#x8BB8; HappyPack &#x8F93;&#x51FA;&#x65E5;&#x5FD7;&#xFF0C;&#x9ED8;&#x8BA4;&#x662F; <code>true</code>&#x3002;</li>
<li><code>threadPool</code> &#x4EE3;&#x8868;&#x5171;&#x4EAB;&#x8FDB;&#x7A0B;&#x6C60;&#xFF0C;&#x5373;&#x591A;&#x4E2A; HappyPack &#x5B9E;&#x4F8B;&#x90FD;&#x4F7F;&#x7528;&#x540C;&#x4E00;&#x4E2A;&#x5171;&#x4EAB;&#x8FDB;&#x7A0B;&#x6C60;&#x4E2D;&#x7684;&#x5B50;&#x8FDB;&#x7A0B;&#x53BB;&#x5904;&#x7406;&#x4EFB;&#x52A1;&#xFF0C;&#x4EE5;&#x9632;&#x6B62;&#x8D44;&#x6E90;&#x5360;&#x7528;&#x8FC7;&#x591A;&#xFF0C;&#x76F8;&#x5173;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</li>
</ul>
<pre><code class="lang-js"><span class="hljs-keyword">const</span> HappyPack = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;happypack&apos;</span>);
<span class="hljs-comment">// &#x6784;&#x9020;&#x51FA;&#x5171;&#x4EAB;&#x8FDB;&#x7A0B;&#x6C60;&#xFF0C;&#x8FDB;&#x7A0B;&#x6C60;&#x4E2D;&#x5305;&#x542B;5&#x4E2A;&#x5B50;&#x8FDB;&#x7A0B;</span>
<span class="hljs-keyword">const</span> happyThreadPool = HappyPack.ThreadPool({ size: <span class="hljs-number">5</span> });

<span class="hljs-built_in">module</span>.exports = {
  plugins: [
    <span class="hljs-keyword">new</span> HappyPack({
      <span class="hljs-comment">// &#x7528;&#x552F;&#x4E00;&#x7684;&#x6807;&#x8BC6;&#x7B26; id &#x6765;&#x4EE3;&#x8868;&#x5F53;&#x524D;&#x7684; HappyPack &#x662F;&#x7528;&#x6765;&#x5904;&#x7406;&#x4E00;&#x7C7B;&#x7279;&#x5B9A;&#x7684;&#x6587;&#x4EF6;</span>
      id: <span class="hljs-string">&apos;babel&apos;</span>,
      <span class="hljs-comment">// &#x5982;&#x4F55;&#x5904;&#x7406; .js &#x6587;&#x4EF6;&#xFF0C;&#x7528;&#x6CD5;&#x548C; Loader &#x914D;&#x7F6E;&#x4E2D;&#x4E00;&#x6837;</span>
      loaders: [<span class="hljs-string">&apos;babel-loader?cacheDirectory&apos;</span>],
      <span class="hljs-comment">// &#x4F7F;&#x7528;&#x5171;&#x4EAB;&#x8FDB;&#x7A0B;&#x6C60;&#x4E2D;&#x7684;&#x5B50;&#x8FDB;&#x7A0B;&#x53BB;&#x5904;&#x7406;&#x4EFB;&#x52A1;</span>
      threadPool: happyThreadPool,
    }),
    <span class="hljs-keyword">new</span> HappyPack({
      id: <span class="hljs-string">&apos;css&apos;</span>,
      <span class="hljs-comment">// &#x5982;&#x4F55;&#x5904;&#x7406; .css &#x6587;&#x4EF6;&#xFF0C;&#x7528;&#x6CD5;&#x548C; Loader &#x914D;&#x7F6E;&#x4E2D;&#x4E00;&#x6837;</span>
      loaders: [<span class="hljs-string">&apos;css-loader&apos;</span>],
      <span class="hljs-comment">// &#x4F7F;&#x7528;&#x5171;&#x4EAB;&#x8FDB;&#x7A0B;&#x6C60;&#x4E2D;&#x7684;&#x5B50;&#x8FDB;&#x7A0B;&#x53BB;&#x5904;&#x7406;&#x4EFB;&#x52A1;</span>
      threadPool: happyThreadPool,
    }),
    <span class="hljs-keyword">new</span> ExtractTextPlugin({
      filename: <span class="hljs-string">`[name].css`</span>,
    }),
  ],
};
</code></pre>
<p>&#x63A5;&#x5165; HappyPack &#x540E;&#xFF0C;&#x4F60;&#x9700;&#x8981;&#x7ED9;&#x9879;&#x76EE;&#x5B89;&#x88C5;&#x65B0;&#x7684;&#x4F9D;&#x8D56;&#xFF1A;</p>
<pre><code class="lang-bash">npm i -D happypack
</code></pre>
<p>&#x5B89;&#x88C5;&#x6210;&#x529F;&#x540E;&#x91CD;&#x65B0;&#x6267;&#x884C;&#x6784;&#x5EFA;&#x4F60;&#x5C31;&#x4F1A;&#x770B;&#x5230;&#x4EE5;&#x4E0B;&#x7531; HappyPack &#x8F93;&#x51FA;&#x7684;&#x65E5;&#x5FD7;&#xFF1A;</p>
<pre><code>Happy[babel]: Version: 4.0.0-beta.5. Threads: 3
Happy[babel]: All set; signaling webpack to proceed.
Happy[css]: Version: 4.0.0-beta.5. Threads: 3
Happy[css]: All set; signaling webpack to proceed.
</code></pre><p>&#x8BF4;&#x660E;&#x4F60;&#x7684; HappyPack &#x914D;&#x7F6E;&#x751F;&#x6548;&#x4E86;&#xFF0C;&#x5E76;&#x4E14;&#x53EF;&#x4EE5;&#x5F97;&#x77E5; HappyPack &#x5206;&#x522B;&#x542F;&#x52A8;&#x4E86;3&#x4E2A;&#x5B50;&#x8FDB;&#x7A0B;&#x53BB;&#x5E76;&#x884C;&#x7684;&#x5904;&#x7406;&#x4EFB;&#x52A1;&#x3002;</p>
<blockquote>
<p>&#x672C;&#x5B9E;&#x4F8B;<a href="http://webpack.wuhaolin.cn/4-3&#x4F7F;&#x7528;HappyPack.zip" target="_blank">&#x63D0;&#x4F9B;&#x9879;&#x76EE;&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a></p>
</blockquote>
<h2 id="happypack-&#x539F;&#x7406;">HappyPack &#x539F;&#x7406;</h2>
<p>&#x5728;&#x6574;&#x4E2A; Webpack &#x6784;&#x5EFA;&#x6D41;&#x7A0B;&#x4E2D;&#xFF0C;&#x6700;&#x8017;&#x65F6;&#x7684;&#x6D41;&#x7A0B;&#x53EF;&#x80FD;&#x5C31;&#x662F; Loader &#x5BF9;&#x6587;&#x4EF6;&#x7684;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;&#x4E86;&#xFF0C;&#x56E0;&#x4E3A;&#x8981;&#x8F6C;&#x6362;&#x7684;&#x6587;&#x4EF6;&#x6570;&#x636E;&#x5DE8;&#x591A;&#xFF0C;&#x800C;&#x4E14;&#x8FD9;&#x4E9B;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;&#x90FD;&#x53EA;&#x80FD;&#x4E00;&#x4E2A;&#x4E2A;&#x6328;&#x7740;&#x5904;&#x7406;&#x3002;
HappyPack &#x7684;&#x6838;&#x5FC3;&#x539F;&#x7406;&#x5C31;&#x662F;&#x628A;&#x8FD9;&#x90E8;&#x5206;&#x4EFB;&#x52A1;&#x5206;&#x89E3;&#x5230;&#x591A;&#x4E2A;&#x8FDB;&#x7A0B;&#x53BB;&#x5E76;&#x884C;&#x5904;&#x7406;&#xFF0C;&#x4ECE;&#x800C;&#x51CF;&#x5C11;&#x4E86;&#x603B;&#x7684;&#x6784;&#x5EFA;&#x65F6;&#x95F4;&#x3002;</p>
<p>&#x4ECE;&#x524D;&#x9762;&#x7684;&#x4F7F;&#x7528;&#x4E2D;&#x53EF;&#x4EE5;&#x770B;&#x51FA;&#x6240;&#x6709;&#x9700;&#x8981;&#x901A;&#x8FC7; Loader &#x5904;&#x7406;&#x7684;&#x6587;&#x4EF6;&#x90FD;&#x5148;&#x4EA4;&#x7ED9;&#x4E86; <code>happypack/loader</code> &#x53BB;&#x5904;&#x7406;&#xFF0C;&#x6536;&#x96C6;&#x5230;&#x4E86;&#x8FD9;&#x4E9B;&#x6587;&#x4EF6;&#x7684;&#x5904;&#x7406;&#x6743;&#x540E; HappyPack &#x5C31;&#x597D;&#x7EDF;&#x4E00;&#x5206;&#x914D;&#x4E86;&#x3002;</p>
<p>&#x6BCF;&#x901A;&#x8FC7; <code>new HappyPack()</code> &#x5B9E;&#x4F8B;&#x5316;&#x4E00;&#x4E2A; HappyPack &#x5176;&#x5B9E;&#x5C31;&#x662F;&#x544A;&#x8BC9; HappyPack &#x6838;&#x5FC3;&#x8C03;&#x5EA6;&#x5668;&#x5982;&#x4F55;&#x901A;&#x8FC7;&#x4E00;&#x7CFB;&#x5217; Loader &#x53BB;&#x8F6C;&#x6362;&#x4E00;&#x7C7B;&#x6587;&#x4EF6;&#xFF0C;&#x5E76;&#x4E14;&#x53EF;&#x4EE5;&#x6307;&#x5B9A;&#x5982;&#x4F55;&#x7ED9;&#x8FD9;&#x7C7B;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;&#x5206;&#x914D;&#x5B50;&#x8FDB;&#x7A0B;&#x3002;</p>
<p>&#x6838;&#x5FC3;&#x8C03;&#x5EA6;&#x5668;&#x7684;&#x903B;&#x8F91;&#x4EE3;&#x7801;&#x5728;&#x4E3B;&#x8FDB;&#x7A0B;&#x4E2D;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x8FD0;&#x884C;&#x7740; Webpack &#x7684;&#x8FDB;&#x7A0B;&#x4E2D;&#xFF0C;&#x6838;&#x5FC3;&#x8C03;&#x5EA6;&#x5668;&#x4F1A;&#x628A;&#x4E00;&#x4E2A;&#x4E2A;&#x4EFB;&#x52A1;&#x5206;&#x914D;&#x7ED9;&#x5F53;&#x524D;&#x7A7A;&#x95F2;&#x7684;&#x5B50;&#x8FDB;&#x7A0B;&#xFF0C;&#x5B50;&#x8FDB;&#x7A0B;&#x5904;&#x7406;&#x5B8C;&#x6BD5;&#x540E;&#x628A;&#x7ED3;&#x679C;&#x53D1;&#x9001;&#x7ED9;&#x6838;&#x5FC3;&#x8C03;&#x5EA6;&#x5668;&#xFF0C;&#x5B83;&#x4EEC;&#x4E4B;&#x95F4;&#x7684;&#x6570;&#x636E;&#x4EA4;&#x6362;&#x662F;&#x901A;&#x8FC7;&#x8FDB;&#x7A0B;&#x95F4;&#x901A;&#x4FE1; API &#x5B9E;&#x73B0;&#x7684;&#x3002;</p>
<p>&#x6838;&#x5FC3;&#x8C03;&#x5EA6;&#x5668;&#x6536;&#x5230;&#x6765;&#x81EA;&#x5B50;&#x8FDB;&#x7A0B;&#x5904;&#x7406;&#x5B8C;&#x6BD5;&#x7684;&#x7ED3;&#x679C;&#x540E;&#x4F1A;&#x901A;&#x77E5; Webpack &#x8BE5;&#x6587;&#x4EF6;&#x5904;&#x7406;&#x5B8C;&#x6BD5;&#x3002;</p>

                                
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