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dive-into-webpack


			
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                    深入浅出 Webpack
            
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                    前言
            
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                    第1章 入门
            
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                    1-1 前端的发展
            
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                    1-2 常见的构建工具及对比
            
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                    1-3 安装与使用
            
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                    1-4 使用 Loader
            
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                    1-5 使用 Plugin
            
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                    1-6 使用 DevServer
            
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                    1-7 核心概念
            
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                    第2章 配置
            
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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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                    第3章 实战
            
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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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<li class="chapter " data-level="1.6" data-path="../4优化/">
  
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                    第4章 优化
            
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<li class="chapter " data-level="1.6.1" data-path="../4优化/4-1缩小文件搜索范围.html">
  
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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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<li class="chapter " data-level="1.6.4" data-path="../4优化/4-4使用ParallelUglifyPlugin.html">
  
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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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<li class="chapter " data-level="1.6.6" data-path="../4优化/4-6开启模块热替换.html">
  
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                    4-6 开启模块热替换
            
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<li class="chapter " data-level="1.6.7" data-path="../4优化/4-7区分环境.html">
  
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                    4-7 区分环境
            
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<li class="chapter " data-level="1.6.8" data-path="../4优化/4-8压缩代码.html">
  
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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优化/4-10使用TreeShaking.html">
  
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                    4-10 使用 Tree Shaking
            
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<li class="chapter " data-level="1.6.11" data-path="../4优化/4-11提取公共代码.html">
  
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                    4-11 提取公共代码
            
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<li class="chapter " data-level="1.6.12" data-path="../4优化/4-12按需加载.html">
  
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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优化/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优化/4-14开启ScopeHoisting.html">
  
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                    4-14 开启 Scope Hoisting
            
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<li class="chapter " data-level="1.6.15" data-path="../4优化/4-15输出分析.html">
  
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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优化/4-16优化总结.html">
  
  <a href="../4优化/4-16优化总结.html">
    
                    
                    4-16 优化总结
            
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<li class="chapter " data-level="1.7" data-path="../5原理/">
  
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                                <h1 id="1-5-&#x4F7F;&#x7528;-plugin">1-5 &#x4F7F;&#x7528; Plugin</h1>
<p>Plugin &#x662F;&#x7528;&#x6765;&#x6269;&#x5C55; Webpack &#x529F;&#x80FD;&#x7684;&#xFF0C;&#x901A;&#x8FC7;&#x5728;&#x6784;&#x5EFA;&#x6D41;&#x7A0B;&#x91CC;&#x6CE8;&#x5165;&#x94A9;&#x5B50;&#x5B9E;&#x73B0;&#xFF0C;&#x5B83;&#x7ED9; Webpack &#x5E26;&#x6765;&#x4E86;&#x5F88;&#x5927;&#x7684;&#x7075;&#x6D3B;&#x6027;&#x3002;</p>
<p>&#x5728;&#x4E0A;&#x4E00;&#x8282;&#x4E2D;&#x901A;&#x8FC7; Loader &#x52A0;&#x8F7D;&#x4E86; CSS &#x6587;&#x4EF6;&#xFF0C;&#x672C;&#x8282;&#x5C06;&#x901A;&#x8FC7; Plugin &#x628A;&#x6CE8;&#x5165;&#x5230; <code>bundle.js</code> &#x6587;&#x4EF6;&#x91CC;&#x7684; CSS &#x63D0;&#x53D6;&#x5230;&#x5355;&#x72EC;&#x7684;&#x6587;&#x4EF6;&#x4E2D;&#xFF0C;&#x914D;&#x7F6E;&#x4FEE;&#x6539;&#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-built_in">module</span>.exports = {
  <span class="hljs-comment">// JavaScript &#x6267;&#x884C;&#x5165;&#x53E3;&#x6587;&#x4EF6;</span>
  entry: <span class="hljs-string">&apos;./main.js&apos;</span>,
  output: {
    <span class="hljs-comment">// &#x628A;&#x6240;&#x6709;&#x4F9D;&#x8D56;&#x7684;&#x6A21;&#x5757;&#x5408;&#x5E76;&#x8F93;&#x51FA;&#x5230;&#x4E00;&#x4E2A; bundle.js &#x6587;&#x4EF6;</span>
    filename: <span class="hljs-string">&apos;bundle.js&apos;</span>,
    <span class="hljs-comment">// &#x628A;&#x8F93;&#x51FA;&#x6587;&#x4EF6;&#x90FD;&#x653E;&#x5230; dist &#x76EE;&#x5F55;&#x4E0B;</span>
    path: path.resolve(__dirname, <span class="hljs-string">&apos;./dist&apos;</span>),
  },
  <span class="hljs-built_in">module</span>: {
    rules: [
      {
        <span class="hljs-comment">// &#x7528;&#x6B63;&#x5219;&#x53BB;&#x5339;&#x914D;&#x8981;&#x7528;&#x8BE5; loader &#x8F6C;&#x6362;&#x7684; CSS &#x6587;&#x4EF6;</span>
        test: <span class="hljs-regexp">/\.css$/</span>,
        use: ExtractTextPlugin.extract({
          <span class="hljs-comment">// &#x8F6C;&#x6362; .css &#x6587;&#x4EF6;&#x9700;&#x8981;&#x4F7F;&#x7528;&#x7684; Loader</span>
          use: [<span class="hljs-string">&apos;css-loader&apos;</span>],
        }),
      }
    ]
  },
  plugins: [
    <span class="hljs-keyword">new</span> ExtractTextPlugin({
      <span class="hljs-comment">// &#x4ECE; .js &#x6587;&#x4EF6;&#x4E2D;&#x63D0;&#x53D6;&#x51FA;&#x6765;&#x7684; .css &#x6587;&#x4EF6;&#x7684;&#x540D;&#x79F0;</span>
      filename: <span class="hljs-string">`[name]_[contenthash:8].css`</span>,
    }),
  ]
};
</code></pre>
<p>&#x8981;&#x8BA9;&#x4EE5;&#x4E0A;&#x4EE3;&#x7801;&#x8FD0;&#x884C;&#x8D77;&#x6765;&#xFF0C;&#x9700;&#x8981;&#x5148;&#x5B89;&#x88C5;&#x65B0;&#x5F15;&#x5165;&#x7684;&#x63D2;&#x4EF6;&#xFF1A;</p>
<pre><code class="lang-bash">npm i -D extract-text-webpack-plugin
</code></pre>
<p>&#x5B89;&#x88C5;&#x6210;&#x529F;&#x540E;&#x91CD;&#x65B0;&#x6267;&#x884C;&#x6784;&#x5EFA;&#xFF0C;&#x4F60;&#x4F1A;&#x53D1;&#x73B0; dist &#x76EE;&#x5F55;&#x4E0B;&#x591A;&#x51FA;&#x4E00;&#x4E2A; <code>main_1a87a56a.css</code> &#x6587;&#x4EF6;&#xFF0C;<code>bundle.js</code> &#x91CC;&#x4E5F;&#x6CA1;&#x6709; CSS &#x4EE3;&#x7801;&#x4E86;&#xFF0C;&#x518D;&#x628A;&#x8BE5; CSS &#x6587;&#x4EF6;&#x5F15;&#x5165;&#x5230; <code>index.html</code> &#x91CC;&#x5C31;&#x5B8C;&#x6210;&#x4E86;&#x3002;</p>
<p>&#x4ECE;&#x4EE5;&#x4E0A;&#x4EE3;&#x7801;&#x53EF;&#x4EE5;&#x770B;&#x51FA;&#xFF0C; Webpack &#x662F;&#x901A;&#x8FC7; <code>plugins</code> &#x5C5E;&#x6027;&#x6765;&#x914D;&#x7F6E;&#x9700;&#x8981;&#x4F7F;&#x7528;&#x7684;&#x63D2;&#x4EF6;&#x5217;&#x8868;&#x7684;&#x3002;
<code>plugins</code> &#x5C5E;&#x6027;&#x662F;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#xFF0C;&#x91CC;&#x9762;&#x7684;&#x6BCF;&#x4E00;&#x9879;&#x90FD;&#x662F;&#x63D2;&#x4EF6;&#x7684;&#x4E00;&#x4E2A;&#x5B9E;&#x4F8B;&#xFF0C;&#x5728;&#x5B9E;&#x4F8B;&#x5316;&#x4E00;&#x4E2A;&#x7EC4;&#x4EF6;&#x65F6;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x6784;&#x9020;&#x51FD;&#x6570;&#x4F20;&#x5165;&#x8FD9;&#x4E2A;&#x7EC4;&#x4EF6;&#x652F;&#x6301;&#x7684;&#x914D;&#x7F6E;&#x5C5E;&#x6027;&#x3002;</p>
<p>&#x4F8B;&#x5982; <code>ExtractTextPlugin</code> &#x63D2;&#x4EF6;&#x7684;&#x4F5C;&#x7528;&#x662F;&#x63D0;&#x53D6;&#x51FA; JavaScript &#x4EE3;&#x7801;&#x91CC;&#x7684; CSS &#x5230;&#x4E00;&#x4E2A;&#x5355;&#x72EC;&#x7684;&#x6587;&#x4EF6;&#x3002;
&#x5BF9;&#x6B64;&#x4F60;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x63D2;&#x4EF6;&#x7684; <code>filename</code> &#x5C5E;&#x6027;&#xFF0C;&#x544A;&#x8BC9;&#x63D2;&#x4EF6;&#x8F93;&#x51FA;&#x7684; CSS &#x6587;&#x4EF6;&#x540D;&#x79F0;&#x662F;&#x901A;&#x8FC7; <code>[name]_[contenthash:8].css</code> &#x5B57;&#x7B26;&#x4E32;&#x6A21;&#x7248;&#x751F;&#x6210;&#x7684;&#xFF0C;&#x91CC;&#x9762;&#x7684; <code>[name]</code> &#x4EE3;&#x8868;&#x6587;&#x4EF6;&#x540D;&#x79F0;&#xFF0C; <code>[contenthash:8]</code> &#x4EE3;&#x8868;&#x6839;&#x636E;&#x6587;&#x4EF6;&#x5185;&#x5BB9;&#x7B97;&#x51FA;&#x7684;8&#x4F4D; hash &#x503C;&#xFF0C;
&#x8FD8;&#x6709;&#x5F88;&#x591A;&#x914D;&#x7F6E;&#x9009;&#x9879;&#x53EF;&#x4EE5;&#x5728; <a href="https://github.com/webpack-contrib/extract-text-webpack-plugin" target="_blank">ExtractTextPlugin</a> &#x7684;&#x4E3B;&#x9875;&#x4E0A;&#x67E5;&#x5230;&#x3002;</p>
<blockquote>
<p>&#x672C;&#x5B9E;&#x4F8B; <a href="http://webpack.wuhaolin.cn/1-5&#x4F7F;&#x7528;Plugin.zip" target="_blank">&#x63D0;&#x4F9B;&#x9879;&#x76EE;&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a></p>
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