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                    前言
            
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                    第1章 入门
            
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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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                    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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                    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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<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>

<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
            
    </a>
    

</li>


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</li>

<li class="chapter " data-level="1.7" data-path="../5原理/">
  
  <a href="../5原理/">
    
                    
                    第5章 原理
            
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    <ul class="articles">
      

<li class="chapter " data-level="1.7.1" data-path="../5原理/5-1工作原理概括.html">
  
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                    5-1 工作原理概括
            
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</li>

<li class="chapter " data-level="1.7.2" data-path="../5原理/5-2输出文件分析.html">
  
  <a href="../5原理/5-2输出文件分析.html">
    
                    
                    5-2 输出文件分析
            
    </a>
    

</li>

<li class="chapter " data-level="1.7.3" data-path="../5原理/5-3编写Loader.html">
  
  <a href="../5原理/5-3编写Loader.html">
    
                    
                    5-3 编写 Loader
            
    </a>
    

</li>

<li class="chapter " data-level="1.7.4" data-path="../5原理/5-4编写Plugin.html">
  
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                    5-4 编写 Plugin
            
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</li>

<li class="chapter " data-level="1.7.5" data-path="../5原理/5-5调试Webpack.html">
  
  <a href="../5原理/5-5调试Webpack.html">
    
                    
                    5-5 调试 Webpack
            
    </a>
    

</li>

<li class="chapter " data-level="1.7.6" data-path="../5原理/5-6原理总结.html">
  
  <a href="../5原理/5-6原理总结.html">
    
                    
                    5-6 原理总结
            
    </a>
    

</li>


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<li class="chapter " data-level="1.8" >
  
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                    附录
            
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                    常用 Loaders
            
    </a>
    

</li>

<li class="chapter " data-level="1.8.2" data-path="../附录/常用Plugins.html">
  
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                    常用 Plugins
            
    </a>
    

</li>

<li class="chapter " data-level="1.8.3" data-path="../附录/其它Webpack学习资源.html">
  
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                    其它 Webpack 学习资源
            
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        <a href=".." >2-2 Output</a>
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                                <h1 id="2-2-output">2-2 Output</h1>
<p><code>output</code> &#x914D;&#x7F6E;&#x5982;&#x4F55;&#x8F93;&#x51FA;&#x6700;&#x7EC8;&#x60F3;&#x8981;&#x7684;&#x4EE3;&#x7801;&#x3002;<code>output</code> &#x662F;&#x4E00;&#x4E2A; <code>object</code>&#xFF0C;&#x91CC;&#x9762;&#x5305;&#x542B;&#x4E00;&#x7CFB;&#x5217;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x4E0B;&#x9762;&#x5206;&#x522B;&#x4ECB;&#x7ECD;&#x5B83;&#x4EEC;&#x3002;</p>
<h2 id="filename">filename</h2>
<p><code>output.filename</code> &#x914D;&#x7F6E;&#x8F93;&#x51FA;&#x6587;&#x4EF6;&#x7684;&#x540D;&#x79F0;&#xFF0C;&#x4E3A;string &#x7C7B;&#x578B;&#x3002;
&#x5982;&#x679C;&#x53EA;&#x6709;&#x4E00;&#x4E2A;&#x8F93;&#x51FA;&#x6587;&#x4EF6;&#xFF0C;&#x5219;&#x53EF;&#x4EE5;&#x628A;&#x5B83;&#x5199;&#x6210;&#x9759;&#x6001;&#x4E0D;&#x53D8;&#x7684;&#xFF1A;</p>
<pre><code class="lang-js">filename: <span class="hljs-string">&apos;bundle.js&apos;</span>
</code></pre>
<p>&#x4F46;&#x662F;&#x5728;&#x6709;&#x591A;&#x4E2A; Chunk &#x8981;&#x8F93;&#x51FA;&#x65F6;&#xFF0C;&#x5C31;&#x9700;&#x8981;&#x501F;&#x52A9;&#x6A21;&#x7248;&#x548C;&#x53D8;&#x91CF;&#x4E86;&#x3002;&#x524D;&#x9762;&#x8BF4;&#x5230; Webpack &#x4F1A;&#x4E3A;&#x6BCF;&#x4E2A; Chunk&#x53D6;&#x4E00;&#x4E2A;&#x540D;&#x79F0;&#xFF0C;&#x53EF;&#x4EE5;&#x6839;&#x636E; Chunk &#x7684;&#x540D;&#x79F0;&#x6765;&#x533A;&#x5206;&#x8F93;&#x51FA;&#x7684;&#x6587;&#x4EF6;&#x540D;&#xFF1A;</p>
<pre><code class="lang-js">filename: <span class="hljs-string">&apos;[name].js&apos;</span>
</code></pre>
<p>&#x4EE3;&#x7801;&#x91CC;&#x7684; <code>[name]</code> &#x4EE3;&#x8868;&#x7528;&#x5185;&#x7F6E;&#x7684; <code>name</code> &#x53D8;&#x91CF;&#x53BB;&#x66FF;&#x6362;<code>[name]</code>&#xFF0C;&#x8FD9;&#x65F6;&#x4F60;&#x53EF;&#x4EE5;&#x628A;&#x5B83;&#x770B;&#x4F5C;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x6A21;&#x5757;&#x51FD;&#x6570;&#xFF0C;
&#x6BCF;&#x4E2A;&#x8981;&#x8F93;&#x51FA;&#x7684; Chunk &#x90FD;&#x4F1A;&#x901A;&#x8FC7;&#x8FD9;&#x4E2A;&#x51FD;&#x6570;&#x53BB;&#x62FC;&#x63A5;&#x51FA;&#x8F93;&#x51FA;&#x7684;&#x6587;&#x4EF6;&#x540D;&#x79F0;&#x3002;</p>
<p>&#x5185;&#x7F6E;&#x53D8;&#x91CF;&#x9664;&#x4E86; <code>name</code> &#x8FD8;&#x5305;&#x62EC;&#xFF1A;</p>
<table>
<thead>
<tr>
<th>&#x53D8;&#x91CF;&#x540D;</th>
<th>&#x542B;&#x4E49;</th>
</tr>
</thead>
<tbody>
<tr>
<td>id</td>
<td>Chunk &#x7684;&#x552F;&#x4E00;&#x6807;&#x8BC6;&#xFF0C;&#x4ECE;0&#x5F00;&#x59CB;</td>
</tr>
<tr>
<td>name</td>
<td>Chunk &#x7684;&#x540D;&#x79F0;</td>
</tr>
<tr>
<td>hash</td>
<td>Chunk &#x7684;&#x552F;&#x4E00;&#x6807;&#x8BC6;&#x7684; Hash &#x503C;</td>
</tr>
<tr>
<td>chunkhash</td>
<td>Chunk &#x5185;&#x5BB9;&#x7684; Hash &#x503C;</td>
</tr>
</tbody>
</table>
<p>&#x5176;&#x4E2D; <code>hash</code> &#x548C; <code>chunkhash</code> &#x7684;&#x957F;&#x5EA6;&#x662F;&#x53EF;&#x6307;&#x5B9A;&#x7684;&#xFF0C;<code>[hash:8]</code> &#x4EE3;&#x8868;&#x53D6;8&#x4F4D; Hash &#x503C;&#xFF0C;&#x9ED8;&#x8BA4;&#x662F;20&#x4F4D;&#x3002;</p>
<blockquote>
<p>&#x6CE8;&#x610F; <a href="https://github.com/webpack-contrib/extract-text-webpack-plugin" target="_blank">ExtractTextWebpackPlugin</a> &#x63D2;&#x4EF6;&#x662F;&#x4F7F;&#x7528; <code>contenthash</code> &#x6765;&#x4EE3;&#x8868;&#x54C8;&#x5E0C;&#x503C;&#x800C;&#x4E0D;&#x662F; <code>chunkhash</code>&#xFF0C;
&#x539F;&#x56E0;&#x5728;&#x4E8E; ExtractTextWebpackPlugin &#x63D0;&#x53D6;&#x51FA;&#x6765;&#x7684;&#x5185;&#x5BB9;&#x662F;&#x4EE3;&#x7801;&#x5185;&#x5BB9;&#x672C;&#x8EAB;&#x800C;&#x4E0D;&#x662F;&#x7531;&#x4E00;&#x7EC4;&#x6A21;&#x5757;&#x7EC4;&#x6210;&#x7684; Chunk&#x3002;</p>
</blockquote>
<h2 id="chunkfilename">chunkFilename</h2>
<p><code>output.chunkFilename</code> &#x914D;&#x7F6E;&#x65E0;&#x5165;&#x53E3;&#x7684; Chunk &#x5728;&#x8F93;&#x51FA;&#x65F6;&#x7684;&#x6587;&#x4EF6;&#x540D;&#x79F0;&#x3002;
chunkFilename &#x548C;&#x4E0A;&#x9762;&#x7684; filename &#x975E;&#x5E38;&#x7C7B;&#x4F3C;&#xFF0C;&#x4F46; chunkFilename &#x53EA;&#x7528;&#x4E8E;&#x6307;&#x5B9A;&#x5728;&#x8FD0;&#x884C;&#x8FC7;&#x7A0B;&#x4E2D;&#x751F;&#x6210;&#x7684; Chunk &#x5728;&#x8F93;&#x51FA;&#x65F6;&#x7684;&#x6587;&#x4EF6;&#x540D;&#x79F0;&#x3002;
&#x5E38;&#x89C1;&#x7684;&#x4F1A;&#x5728;&#x8FD0;&#x884C;&#x65F6;&#x751F;&#x6210; Chunk &#x573A;&#x666F;&#x6709;&#x5728;&#x4F7F;&#x7528; CommonChunkPlugin&#x3001;&#x4F7F;&#x7528; <code>import(&apos;path/to/module&apos;)</code> &#x52A8;&#x6001;&#x52A0;&#x8F7D;&#x7B49;&#x65F6;&#x3002;
chunkFilename &#x652F;&#x6301;&#x548C; filename &#x4E00;&#x81F4;&#x7684;&#x5185;&#x7F6E;&#x53D8;&#x91CF;&#x3002;</p>
<h2 id="path">path</h2>
<p><code>output.path</code> &#x914D;&#x7F6E;&#x8F93;&#x51FA;&#x6587;&#x4EF6;&#x5B58;&#x653E;&#x5728;&#x672C;&#x5730;&#x7684;&#x76EE;&#x5F55;&#xFF0C;&#x5FC5;&#x987B;&#x662F; string &#x7C7B;&#x578B;&#x7684;&#x7EDD;&#x5BF9;&#x8DEF;&#x5F84;&#x3002;&#x901A;&#x5E38;&#x901A;&#x8FC7; Node.js &#x7684; <code>path</code> &#x6A21;&#x5757;&#x53BB;&#x83B7;&#x53D6;&#x7EDD;&#x5BF9;&#x8DEF;&#x5F84;&#xFF1A;</p>
<pre><code class="lang-js">path: path.resolve(__dirname, <span class="hljs-string">&apos;dist_[hash]&apos;</span>)
</code></pre>
<h2 id="publicpath">publicPath</h2>
<p>&#x5728;&#x590D;&#x6742;&#x7684;&#x9879;&#x76EE;&#x91CC;&#x53EF;&#x80FD;&#x4F1A;&#x6709;&#x4E00;&#x4E9B;&#x6784;&#x5EFA;&#x51FA;&#x7684;&#x8D44;&#x6E90;&#x9700;&#x8981;&#x5F02;&#x6B65;&#x52A0;&#x8F7D;&#xFF0C;&#x52A0;&#x8F7D;&#x8FD9;&#x4E9B;&#x5F02;&#x6B65;&#x8D44;&#x6E90;&#x9700;&#x8981;&#x5BF9;&#x5E94;&#x7684; URL &#x5730;&#x5740;&#x3002;</p>
<p><code>output.publicPath</code> &#x914D;&#x7F6E;&#x53D1;&#x5E03;&#x5230;&#x7EBF;&#x4E0A;&#x8D44;&#x6E90;&#x7684; URL &#x524D;&#x7F00;&#xFF0C;&#x4E3A;string &#x7C7B;&#x578B;&#x3002;
&#x9ED8;&#x8BA4;&#x503C;&#x662F;&#x7A7A;&#x5B57;&#x7B26;&#x4E32; <code>&apos;&apos;</code>&#xFF0C;&#x5373;&#x4F7F;&#x7528;&#x76F8;&#x5BF9;&#x8DEF;&#x5F84;&#x3002;</p>
<p>&#x8FD9;&#x6837;&#x8BF4;&#x53EF;&#x80FD;&#x6709;&#x70B9;&#x62BD;&#x8C61;&#xFF0C;&#x4E3E;&#x4E2A;&#x4F8B;&#x5B50;&#xFF0C;&#x9700;&#x8981;&#x628A;&#x6784;&#x5EFA;&#x51FA;&#x7684;&#x8D44;&#x6E90;&#x6587;&#x4EF6;&#x4E0A;&#x4F20;&#x5230; CDN &#x670D;&#x52A1;&#x4E0A;&#xFF0C;&#x4EE5;&#x5229;&#x4E8E;&#x52A0;&#x5FEB;&#x9875;&#x9762;&#x7684;&#x6253;&#x5F00;&#x901F;&#x5EA6;&#x3002;&#x914D;&#x7F6E;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js">filename:<span class="hljs-string">&apos;[name]_[chunkhash:8].js&apos;</span>
publicPath: <span class="hljs-string">&apos;https://cdn.example.com/assets/&apos;</span>
</code></pre>
<p>&#x8FD9;&#x65F6;&#x53D1;&#x5E03;&#x5230;&#x7EBF;&#x4E0A;&#x7684; HTML &#x5728;&#x5F15;&#x5165; JavaScript &#x6587;&#x4EF6;&#x65F6;&#x5C31;&#x9700;&#x8981;&#xFF1A;</p>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">&apos;https://cdn.example.com/assets/a_12345678.js&apos;</span>&gt;</span><span class="undefined"></span><span class="hljs-tag">&lt;/<span class="hljs-name">script</span>&gt;</span>
</code></pre>
<p>&#x4F7F;&#x7528;&#x8BE5;&#x914D;&#x7F6E;&#x9879;&#x65F6;&#x8981;&#x5C0F;&#x5FC3;&#xFF0C;&#x7A0D;&#x6709;&#x4E0D;&#x614E;&#x5C06;&#x5BFC;&#x81F4;&#x8D44;&#x6E90;&#x52A0;&#x8F7D;404&#x9519;&#x8BEF;&#x3002;</p>
<p><code>output.path</code> &#x548C; <code>output.publicPath</code> &#x90FD;&#x652F;&#x6301;&#x5B57;&#x7B26;&#x4E32;&#x6A21;&#x7248;&#xFF0C;&#x5185;&#x7F6E;&#x53D8;&#x91CF;&#x53EA;&#x6709;&#x4E00;&#x4E2A;&#xFF1A;<code>hash</code> &#x4EE3;&#x8868;&#x4E00;&#x6B21;&#x7F16;&#x8BD1;&#x64CD;&#x4F5C;&#x7684; Hash &#x503C;&#x3002;</p>
<h2 id="crossoriginloading">crossOriginLoading</h2>
<p>Webpack &#x8F93;&#x51FA;&#x7684;&#x90E8;&#x5206;&#x4EE3;&#x7801;&#x5757;&#x53EF;&#x80FD;&#x9700;&#x8981;&#x5F02;&#x6B65;&#x52A0;&#x8F7D;&#xFF0C;&#x800C;&#x5F02;&#x6B65;&#x52A0;&#x8F7D;&#x662F;&#x901A;&#x8FC7; <a href="https://zh.wikipedia.org/wiki/JSONP" target="_blank">JSONP</a> &#x65B9;&#x5F0F;&#x5B9E;&#x73B0;&#x7684;&#x3002;
JSONP &#x7684;&#x539F;&#x7406;&#x662F;&#x52A8;&#x6001;&#x5730;&#x5411; HTML &#x4E2D;&#x63D2;&#x5165;&#x4E00;&#x4E2A; <code>&lt;script src=&quot;url&quot;&gt;&lt;/script&gt;</code> &#x6807;&#x7B7E;&#x53BB;&#x52A0;&#x8F7D;&#x5F02;&#x6B65;&#x8D44;&#x6E90;&#x3002; 
<code>output.crossOriginLoading</code> &#x5219;&#x662F;&#x7528;&#x4E8E;&#x914D;&#x7F6E;&#x8FD9;&#x4E2A;&#x5F02;&#x6B65;&#x63D2;&#x5165;&#x7684;&#x6807;&#x7B7E;&#x7684; <code>crossorigin</code> &#x503C;&#x3002;</p>
<p>script &#x6807;&#x7B7E;&#x7684; crossorigin &#x5C5E;&#x6027;&#x53EF;&#x4EE5;&#x53D6;&#x4EE5;&#x4E0B;&#x503C;&#xFF1A;</p>
<ul>
<li><code>anonymous</code>(&#x9ED8;&#x8BA4;) &#x5728;&#x52A0;&#x8F7D;&#x6B64;&#x811A;&#x672C;&#x8D44;&#x6E90;&#x65F6;&#x4E0D;&#x4F1A;&#x5E26;&#x4E0A;&#x7528;&#x6237;&#x7684; Cookies&#xFF1B;</li>
<li><code>use-credentials</code> &#x5728;&#x52A0;&#x8F7D;&#x6B64;&#x811A;&#x672C;&#x8D44;&#x6E90;&#x65F6;&#x4F1A;&#x5E26;&#x4E0A;&#x7528;&#x6237;&#x7684; Cookies&#x3002;</li>
</ul>
<p>&#x901A;&#x5E38;&#x7528;&#x8BBE;&#x7F6E; crossorigin &#x6765;&#x83B7;&#x53D6;&#x5F02;&#x6B65;&#x52A0;&#x8F7D;&#x7684;&#x811A;&#x672C;&#x6267;&#x884C;&#x65F6;&#x7684;&#x8BE6;&#x7EC6;&#x9519;&#x8BEF;&#x4FE1;&#x606F;&#x3002;</p>
<h2 id="librarytarget-&#x548C;-library">libraryTarget &#x548C; library</h2>
<p>&#x5F53;&#x7528; Webpack &#x53BB;&#x6784;&#x5EFA;&#x4E00;&#x4E2A;&#x53EF;&#x4EE5;&#x88AB;&#x5176;&#x4ED6;&#x6A21;&#x5757;&#x5BFC;&#x5165;&#x4F7F;&#x7528;&#x7684;&#x5E93;&#x65F6;&#x9700;&#x8981;&#x7528;&#x5230;&#x5B83;&#x4EEC;&#x3002;</p>
<ul>
<li><code>output.libraryTarget</code> &#x914D;&#x7F6E;&#x4EE5;&#x4F55;&#x79CD;&#x65B9;&#x5F0F;&#x5BFC;&#x51FA;&#x5E93;&#x3002;</li>
<li><code>output.library</code> &#x914D;&#x7F6E;&#x5BFC;&#x51FA;&#x5E93;&#x7684;&#x540D;&#x79F0;&#x3002;</li>
</ul>
<p>&#x5B83;&#x4EEC;&#x901A;&#x5E38;&#x642D;&#x914D;&#x5728;&#x4E00;&#x8D77;&#x4F7F;&#x7528;&#x3002;</p>
<p><code>output.libraryTarget</code> &#x662F;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x679A;&#x4E3E;&#x7C7B;&#x578B;&#xFF0C;&#x652F;&#x6301;&#x4EE5;&#x4E0B;&#x914D;&#x7F6E;&#x3002;</p>
<h3 id="var-&#x9ED8;&#x8BA4;">var (&#x9ED8;&#x8BA4;)</h3>
<p>&#x7F16;&#x5199;&#x7684;&#x5E93;&#x5C06;&#x901A;&#x8FC7; <code>var</code> &#x88AB;&#x8D4B;&#x503C;&#x7ED9;&#x901A;&#x8FC7; <code>library</code> &#x6307;&#x5B9A;&#x540D;&#x79F0;&#x7684;&#x53D8;&#x91CF;&#x3002;</p>
<p>&#x5047;&#x5982;&#x914D;&#x7F6E;&#x4E86; <code>output.library=&apos;LibraryName&apos;</code>&#xFF0C;&#x5219;&#x8F93;&#x51FA;&#x548C;&#x4F7F;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-comment">// Webpack &#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;</span>
<span class="hljs-keyword">var</span> LibraryName = lib_code;

<span class="hljs-comment">// &#x4F7F;&#x7528;&#x5E93;&#x7684;&#x65B9;&#x6CD5;</span>
LibraryName.doSomething();
</code></pre>
<p>&#x5047;&#x5982; <code>output.library</code> &#x4E3A;&#x7A7A;&#xFF0C;&#x5219;&#x5C06;&#x76F4;&#x63A5;&#x8F93;&#x51FA;&#xFF1A;</p>
<pre><code class="lang-js">lib_code
</code></pre>
<blockquote>
<p>&#x5176;&#x4E2D; <code>lib_code</code> &#x4EE3;&#x6307;&#x5BFC;&#x51FA;&#x5E93;&#x7684;&#x4EE3;&#x7801;&#x5185;&#x5BB9;&#xFF0C;&#x662F;&#x6709;&#x8FD4;&#x56DE;&#x503C;&#x7684;&#x4E00;&#x4E2A;&#x81EA;&#x6267;&#x884C;&#x51FD;&#x6570;&#x3002;</p>
</blockquote>
<h3 id="commonjs">commonjs</h3>
<p>&#x7F16;&#x5199;&#x7684;&#x5E93;&#x5C06;&#x901A;&#x8FC7; CommonJS &#x89C4;&#x8303;&#x5BFC;&#x51FA;&#x3002;</p>
<p>&#x5047;&#x5982;&#x914D;&#x7F6E;&#x4E86; <code>output.library=&apos;LibraryName&apos;</code>&#xFF0C;&#x5219;&#x8F93;&#x51FA;&#x548C;&#x4F7F;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-comment">// Webpack &#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;</span>
exports[<span class="hljs-string">&apos;LibraryName&apos;</span>] = lib_code;

<span class="hljs-comment">// &#x4F7F;&#x7528;&#x5E93;&#x7684;&#x65B9;&#x6CD5;</span>
<span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;library-name-in-npm&apos;</span>)[<span class="hljs-string">&apos;LibraryName&apos;</span>].doSomething();
</code></pre>
<blockquote>
<p>&#x5176;&#x4E2D; <code>library-name-in-npm</code> &#x662F;&#x6307;&#x6A21;&#x5757;&#x53D1;&#x5E03;&#x5230; Npm &#x4EE3;&#x7801;&#x4ED3;&#x5E93;&#x65F6;&#x7684;&#x540D;&#x79F0;&#x3002;</p>
</blockquote>
<h3 id="commonjs2">commonjs2</h3>
<p>&#x7F16;&#x5199;&#x7684;&#x5E93;&#x5C06;&#x901A;&#x8FC7; CommonJS2 &#x89C4;&#x8303;&#x5BFC;&#x51FA;&#xFF0C;&#x8F93;&#x51FA;&#x548C;&#x4F7F;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-comment">// Webpack &#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;</span>
<span class="hljs-built_in">module</span>.exports = lib_code;

<span class="hljs-comment">// &#x4F7F;&#x7528;&#x5E93;&#x7684;&#x65B9;&#x6CD5;</span>
<span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;library-name-in-npm&apos;</span>).doSomething();
</code></pre>
<blockquote>
<p>CommonJS2 &#x548C; CommonJS &#x89C4;&#x8303;&#x5F88;&#x76F8;&#x4F3C;&#xFF0C;&#x5DEE;&#x522B;&#x5728;&#x4E8E; CommonJS &#x53EA;&#x80FD;&#x7528; <code>exports</code> &#x5BFC;&#x51FA;&#xFF0C;&#x800C; CommonJS2 &#x5728; CommonJS &#x7684;&#x57FA;&#x7840;&#x4E0A;&#x589E;&#x52A0;&#x4E86; <code>module.exports</code> &#x7684;&#x5BFC;&#x51FA;&#x65B9;&#x5F0F;&#x3002;</p>
<p>&#x5728; <code>output.libraryTarget</code> &#x4E3A; <code>commonjs2</code> &#x65F6;&#xFF0C;&#x914D;&#x7F6E; <code>output.library</code> &#x5C06;&#x6CA1;&#x6709;&#x610F;&#x4E49;&#x3002;</p>
</blockquote>
<h3 id="this">this</h3>
<p>&#x7F16;&#x5199;&#x7684;&#x5E93;&#x5C06;&#x901A;&#x8FC7; <code>this</code> &#x88AB;&#x8D4B;&#x503C;&#x7ED9;&#x901A;&#x8FC7; <code>library</code> &#x6307;&#x5B9A;&#x7684;&#x540D;&#x79F0;&#xFF0C;&#x8F93;&#x51FA;&#x548C;&#x4F7F;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-comment">// Webpack &#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;</span>
<span class="hljs-keyword">this</span>[<span class="hljs-string">&apos;LibraryName&apos;</span>] = lib_code;

<span class="hljs-comment">// &#x4F7F;&#x7528;&#x5E93;&#x7684;&#x65B9;&#x6CD5;</span>
<span class="hljs-keyword">this</span>.LibraryName.doSomething();
</code></pre>
<h3 id="window">window</h3>
<p>&#x7F16;&#x5199;&#x7684;&#x5E93;&#x5C06;&#x901A;&#x8FC7; <code>window</code> &#x88AB;&#x8D4B;&#x503C;&#x7ED9;&#x901A;&#x8FC7; <code>library</code> &#x6307;&#x5B9A;&#x7684;&#x540D;&#x79F0;&#xFF0C;&#x5373;&#x628A;&#x5E93;&#x6302;&#x8F7D;&#x5230; <code>window</code> &#x4E0A;&#xFF0C;&#x8F93;&#x51FA;&#x548C;&#x4F7F;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-comment">// Webpack &#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;</span>
<span class="hljs-built_in">window</span>[<span class="hljs-string">&apos;LibraryName&apos;</span>] = lib_code;

<span class="hljs-comment">// &#x4F7F;&#x7528;&#x5E93;&#x7684;&#x65B9;&#x6CD5;</span>
<span class="hljs-built_in">window</span>.LibraryName.doSomething();
</code></pre>
<h3 id="global">global</h3>
<p>&#x7F16;&#x5199;&#x7684;&#x5E93;&#x5C06;&#x901A;&#x8FC7; <code>global</code> &#x88AB;&#x8D4B;&#x503C;&#x7ED9;&#x901A;&#x8FC7; <code>library</code> &#x6307;&#x5B9A;&#x7684;&#x540D;&#x79F0;&#xFF0C;&#x5373;&#x628A;&#x5E93;&#x6302;&#x8F7D;&#x5230; <code>global</code> &#x4E0A;&#xFF0C;&#x8F93;&#x51FA;&#x548C;&#x4F7F;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-comment">// Webpack &#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;</span>
global[<span class="hljs-string">&apos;LibraryName&apos;</span>] = lib_code;

<span class="hljs-comment">// &#x4F7F;&#x7528;&#x5E93;&#x7684;&#x65B9;&#x6CD5;</span>
global.LibraryName.doSomething();
</code></pre>
<h2 id="libraryexport">libraryExport</h2>
<p><code>output.libraryExport</code> &#x914D;&#x7F6E;&#x8981;&#x5BFC;&#x51FA;&#x7684;&#x6A21;&#x5757;&#x4E2D;&#x54EA;&#x4E9B;&#x5B50;&#x6A21;&#x5757;&#x9700;&#x8981;&#x88AB;&#x5BFC;&#x51FA;&#x3002;
&#x5B83;&#x53EA;&#x6709;&#x5728; <code>output.libraryTarget</code> &#x88AB;&#x8BBE;&#x7F6E;&#x6210; <code>commonjs</code> &#x6216;&#x8005; <code>commonjs2</code> &#x65F6;&#x4F7F;&#x7528;&#x624D;&#x6709;&#x610F;&#x4E49;&#x3002;</p>
<p>&#x5047;&#x5982;&#x8981;&#x5BFC;&#x51FA;&#x7684;&#x6A21;&#x5757;&#x6E90;&#x4EE3;&#x7801;&#x662F;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">export</span> <span class="hljs-keyword">const</span> a=<span class="hljs-number">1</span>;
<span class="hljs-keyword">export</span> <span class="hljs-keyword">default</span> b=<span class="hljs-number">2</span>;
</code></pre>
<p>&#x73B0;&#x5728;&#x4F60;&#x60F3;&#x8BA9;&#x6784;&#x5EFA;&#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x53EA;&#x5BFC;&#x51FA;&#x5176;&#x4E2D;&#x7684; <code>a</code>&#xFF0C;&#x53EF;&#x4EE5;&#x628A; <code>output.libraryExport</code> &#x8BBE;&#x7F6E;&#x6210; <code>a</code>&#xFF0C;&#x90A3;&#x4E48;&#x6784;&#x5EFA;&#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x548C;&#x4F7F;&#x7528;&#x65B9;&#x6CD5;&#x5C06;&#x53D8;&#x6210;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-comment">// Webpack &#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;</span>
<span class="hljs-built_in">module</span>.exports = lib_code[<span class="hljs-string">&apos;a&apos;</span>];

<span class="hljs-comment">// &#x4F7F;&#x7528;&#x5E93;&#x7684;&#x65B9;&#x6CD5;</span>
<span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;library-name-in-npm&apos;</span>)===<span class="hljs-number">1</span>;
</code></pre>
<blockquote>
<p>&#x4EE5;&#x4E0A;&#x53EA;&#x662F; <code>output</code> &#x91CC;&#x5E38;&#x7528;&#x7684;&#x914D;&#x7F6E;&#x9879;&#xFF0C;&#x8FD8;&#x6709;&#x90E8;&#x5206;&#x51E0;&#x4E4E;&#x7528;&#x4E0D;&#x4E0A;&#x7684;&#x914D;&#x7F6E;&#x9879;&#x6CA1;&#x6709;&#x4E00;&#x4E00;&#x5217;&#x4E3E;&#xFF0C;&#x4F60;&#x53EF;&#x4EE5;&#x5728; <a href="https://webpack.js.org/configuration/output/" target="_blank">Webpack &#x5B98;&#x65B9;&#x6587;&#x6863;</a> &#x4E0A;&#x67E5;&#x9605;&#x5B83;&#x4EEC;&#x3002;</p>
</blockquote>

                                
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