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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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                    3-3 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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                    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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                    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">
  
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                    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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                    第5章 原理
            
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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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                    5-4 编写 Plugin
            
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                    5-5 调试 Webpack
            
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                    5-6 原理总结
            
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                    常用 Loaders
            
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                    常用 Plugins
            
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                    其它 Webpack 学习资源
            
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        <a href=".." >3-21 加载 Source Map</a>
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                                <h1 id="3-21-&#x52A0;&#x8F7D;-source-map">3-21 &#x52A0;&#x8F7D; Source Map</h1>
<p>&#x7531;&#x4E8E;&#x5728;&#x5F00;&#x53D1;&#x8FC7;&#x7A0B;&#x4E2D;&#x7ECF;&#x5E38;&#x4F1A;&#x4F7F;&#x7528;&#x65B0;&#x8BED;&#x8A00;&#x53BB;&#x5F00;&#x53D1;&#x9879;&#x76EE;&#xFF0C;&#x6700;&#x540E;&#x4F1A;&#x628A;&#x6E90;&#x7801;&#x8F6C;&#x6362;&#x6210;&#x80FD;&#x5728;&#x6D4F;&#x89C8;&#x5668;&#x4E2D;&#x76F4;&#x63A5;&#x8FD0;&#x884C;&#x7684; JavaScript &#x4EE3;&#x7801;&#x3002;
&#x8FD9;&#x6837;&#x505A;&#x867D;&#x80FD;&#x63D0;&#x5347;&#x5F00;&#x53D1;&#x6548;&#x7387;&#xFF0C;&#x5728;&#x8C03;&#x8BD5;&#x4EE3;&#x7801;&#x7684;&#x8FC7;&#x7A0B;&#x4E2D;&#x4F60;&#x4F1A;&#x53D1;&#x73B0;&#x751F;&#x6210;&#x7684;&#x4EE3;&#x7801;&#x53EF;&#x8BFB;&#x6027;&#x975E;&#x5E38;&#x5DEE;&#xFF0C;&#x8FD9;&#x7ED9;&#x4EE3;&#x7801;&#x8C03;&#x8BD5;&#x5E26;&#x6765;&#x4E86;&#x4E0D;&#x4FBF;&#x3002;</p>
<p>Webpack &#x652F;&#x6301;&#x4E3A;&#x8F6C;&#x6362;&#x751F;&#x6210;&#x7684;&#x4EE3;&#x7801;&#x8F93;&#x51FA;&#x5BF9;&#x5E94;&#x7684; Source Map &#x6587;&#x4EF6;&#xFF0C;&#x4EE5;&#x65B9;&#x4FBF;&#x5728;&#x6D4F;&#x89C8;&#x5668;&#x4E2D;&#x80FD;&#x901A;&#x8FC7;&#x6E90;&#x7801;&#x8C03;&#x8BD5;&#x3002;
&#x63A7;&#x5236; Source Map &#x8F93;&#x51FA;&#x7684; Webpack &#x914D;&#x7F6E;&#x9879;&#x662F; <code>devtool</code>&#xFF0C;&#x5B83;&#x6709;&#x5F88;&#x591A;&#x9009;&#x9879;&#xFF0C;&#x4E0B;&#x9762;&#x6765;&#x4E00;&#x4E00;&#x8BE6;&#x7EC6;&#x4ECB;&#x7ECD;&#x3002;</p>
<table>
<thead>
<tr>
<th>devtool</th>
<th>&#x542B;&#x4E49;</th>
</tr>
</thead>
<tbody>
<tr>
<td>&#x7A7A;</td>
<td>&#x4E0D;&#x751F;&#x6210; Source Map</td>
</tr>
<tr>
<td>eval</td>
<td>&#x6BCF;&#x4E2A; module &#x4F1A;&#x5C01;&#x88C5;&#x5230; eval &#x91CC;&#x5305;&#x88F9;&#x8D77;&#x6765;&#x6267;&#x884C;&#xFF0C;&#x5E76;&#x4E14;&#x4F1A;&#x5728;&#x6BCF;&#x4E2A; eval &#x8BED;&#x53E5;&#x7684;&#x672B;&#x5C3E;&#x8FFD;&#x52A0;&#x6CE8;&#x91CA; <code>//# sourceURL=webpack:///./main.js</code></td>
</tr>
<tr>
<td>source-map</td>
<td>&#x4F1A;&#x989D;&#x5916;&#x751F;&#x6210;&#x4E00;&#x4E2A;&#x5355;&#x72EC; Source Map &#x6587;&#x4EF6;&#xFF0C;&#x5E76;&#x4E14;&#x4F1A;&#x5728; JavaScript &#x6587;&#x4EF6;&#x672B;&#x5C3E;&#x8FFD;&#x52A0; <code>//# sourceMappingURL=bundle.js.map</code></td>
</tr>
<tr>
<td>hidden-source-map</td>
<td>&#x548C; source-map &#x7C7B;&#x4F3C;&#xFF0C;&#x4F46;&#x4E0D;&#x4F1A;&#x5728; JavaScript &#x6587;&#x4EF6;&#x672B;&#x5C3E;&#x8FFD;&#x52A0; <code>//# sourceMappingURL=bundle.js.map</code></td>
</tr>
<tr>
<td>inline-source-map</td>
<td>&#x548C; source-map &#x7C7B;&#x4F3C;&#xFF0C;&#x4F46;&#x4E0D;&#x4F1A;&#x989D;&#x5916;&#x751F;&#x6210;&#x4E00;&#x4E2A;&#x5355;&#x72EC; Source Map &#x6587;&#x4EF6;&#xFF0C;&#x800C;&#x662F;&#x628A; Source Map &#x8F6C;&#x6362;&#x6210; base64 &#x7F16;&#x7801;&#x5185;&#x5D4C;&#x5230; JavaScript &#x4E2D;</td>
</tr>
<tr>
<td>eval-source-map</td>
<td>&#x548C; eval &#x7C7B;&#x4F3C;&#xFF0C;&#x4F46;&#x4F1A;&#x628A;&#x6BCF;&#x4E2A;&#x6A21;&#x5757;&#x7684; Source Map &#x8F6C;&#x6362;&#x6210; base64 &#x7F16;&#x7801;&#x5185;&#x5D4C;&#x5230; eval &#x8BED;&#x53E5;&#x7684;&#x672B;&#x5C3E;&#xFF0C;&#x4F8B;&#x5982; <code>//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW...</code></td>
</tr>
<tr>
<td>cheap-source-map</td>
<td>&#x548C; source-map &#x7C7B;&#x4F3C;&#xFF0C;&#x4F46;&#x751F;&#x6210;&#x7684; Source Map &#x6587;&#x4EF6;&#x4E2D;&#x6CA1;&#x6709;&#x5217;&#x4FE1;&#x606F;&#xFF0C;&#x56E0;&#x6B64;&#x751F;&#x6210;&#x901F;&#x5EA6;&#x66F4;&#x5FEB;</td>
</tr>
<tr>
<td>cheap-module-source-map</td>
<td>&#x548C; cheap-source-map &#x7C7B;&#x4F3C;&#xFF0C;&#x4F46;&#x4F1A;&#x5305;&#x542B; Loader &#x751F;&#x6210;&#x7684; Source Map</td>
</tr>
</tbody>
</table>
<p>&#x5176;&#x5B9E;&#x4EE5;&#x4E0A;&#x8868;&#x683C;&#x53EA;&#x662F;&#x5217;&#x4E3E;&#x4E86; devtool &#x53EF;&#x80FD;&#x53D6;&#x503C;&#x7684;&#x4E00;&#x90E8;&#x5206;&#xFF0C;
&#x5B83;&#x7684;&#x53D6;&#x503C;&#x5176;&#x5B9E;&#x53EF;&#x4EE5;&#x7531; <code>source-map</code>&#x3001;<code>eval</code>&#x3001;<code>inline</code>&#x3001;<code>hidden</code>&#x3001;<code>cheap</code>&#x3001;<code>module</code> &#x8FD9;&#x516D;&#x4E2A;&#x5173;&#x952E;&#x5B57;&#x968F;&#x610F;&#x7EC4;&#x5408;&#x800C;&#x6210;&#x3002;
&#x8FD9;&#x516D;&#x4E2A;&#x5173;&#x952E;&#x5B57;&#x6BCF;&#x4E2A;&#x90FD;&#x4EE3;&#x8868;&#x4E00;&#x79CD;&#x7279;&#x6027;&#xFF0C;&#x5B83;&#x4EEC;&#x7684;&#x542B;&#x4E49;&#x5206;&#x522B;&#x662F;&#xFF1A;</p>
<ul>
<li>eval&#xFF1A;&#x7528; <code>eval</code> &#x8BED;&#x53E5;&#x5305;&#x88F9;&#x9700;&#x8981;&#x5B89;&#x88C5;&#x7684;&#x6A21;&#x5757;&#xFF1B;</li>
<li>source-map&#xFF1A;&#x751F;&#x6210;&#x72EC;&#x7ACB;&#x7684; Source Map &#x6587;&#x4EF6;&#xFF1B;</li>
<li>hidden&#xFF1A;&#x4E0D;&#x5728; JavaScript &#x6587;&#x4EF6;&#x4E2D;&#x6307;&#x51FA; Source Map &#x6587;&#x4EF6;&#x6240;&#x5728;&#xFF0C;&#x8FD9;&#x6837;&#x6D4F;&#x89C8;&#x5668;&#x5C31;&#x4E0D;&#x4F1A;&#x81EA;&#x52A8;&#x52A0;&#x8F7D; Source Map&#xFF1B;</li>
<li>inline&#xFF1A;&#x628A;&#x751F;&#x6210;&#x7684; Source Map &#x8F6C;&#x6362;&#x6210; base64 &#x683C;&#x5F0F;&#x5185;&#x5D4C;&#x5728; JavaScript &#x6587;&#x4EF6;&#x4E2D;&#xFF1B;</li>
<li>cheap&#xFF1A;&#x751F;&#x6210;&#x7684; Source Map &#x4E2D;&#x4E0D;&#x4F1A;&#x5305;&#x542B;&#x5217;&#x4FE1;&#x606F;&#xFF0C;&#x8FD9;&#x6837;&#x8BA1;&#x7B97;&#x91CF;&#x66F4;&#x5C0F;&#xFF0C;&#x8F93;&#x51FA;&#x7684; Source Map &#x6587;&#x4EF6;&#x66F4;&#x5C0F;&#xFF1B;&#x540C;&#x65F6; Loader &#x8F93;&#x51FA;&#x7684; Source Map &#x4E0D;&#x4F1A;&#x88AB;&#x91C7;&#x7528;&#xFF1B;</li>
<li>module&#xFF1A;&#x6765;&#x81EA; Loader &#x7684; Source Map &#x88AB;&#x7B80;&#x5355;&#x5904;&#x7406;&#x6210;&#x6BCF;&#x884C;&#x4E00;&#x4E2A;&#x6A21;&#x5757;&#xFF1B;</li>
</ul>
<h2 id="&#x8BE5;&#x5982;&#x4F55;&#x9009;&#x62E9;">&#x8BE5;&#x5982;&#x4F55;&#x9009;&#x62E9;</h2>
<p>Devtool &#x914D;&#x7F6E;&#x9879;&#x63D0;&#x4F9B;&#x7684;&#x8FD9;&#x4E48;&#x591A;&#x9009;&#x9879;&#x770B;&#x4F3C;&#x7B80;&#x5355;&#xFF0C;&#x4F46;&#x5F88;&#x591A;&#x4EBA;&#x641E;&#x4E0D;&#x6E05;&#x695A;&#x5B83;&#x4EEC;&#x4E4B;&#x95F4;&#x7684;&#x5DEE;&#x522B;&#x548C;&#x5E94;&#x7528;&#x573A;&#x666F;&#x3002;</p>
<p>&#x5982;&#x679C;&#x4F60;&#x4E0D;&#x5173;&#x5FC3;&#x7EC6;&#x8282;&#x548C;&#x6027;&#x80FD;&#xFF0C;&#x53EA;&#x662F;&#x60F3;&#x5728;&#x4E0D;&#x51FA;&#x4EFB;&#x4F55;&#x5DEE;&#x9519;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x8C03;&#x8BD5;&#x6E90;&#x7801;&#xFF0C;&#x53EF;&#x4EE5;&#x76F4;&#x63A5;&#x8BBE;&#x7F6E;&#x6210; <code>source-map</code>&#xFF0C;&#x4F46;&#x8FD9;&#x6837;&#x4F1A;&#x9020;&#x6210;&#x4E24;&#x4E2A;&#x95EE;&#x9898;&#xFF1A;</p>
<ul>
<li><code>source-map</code> &#x6A21;&#x5F0F;&#x4E0B;&#x4F1A;&#x8F93;&#x51FA;&#x8D28;&#x91CF;&#x6700;&#x9AD8;&#x6700;&#x8BE6;&#x7EC6;&#x7684; Source Map&#xFF0C;&#x8FD9;&#x4F1A;&#x9020;&#x6210;&#x6784;&#x5EFA;&#x901F;&#x5EA6;&#x7F13;&#x6162;&#xFF0C;&#x7279;&#x522B;&#x662F;&#x5728;&#x5F00;&#x53D1;&#x8FC7;&#x7A0B;&#x9700;&#x8981;&#x9891;&#x7E41;&#x4FEE;&#x6539;&#x7684;&#x65F6;&#x5019;&#x4F1A;&#x589E;&#x52A0;&#x7B49;&#x5F85;&#x65F6;&#x95F4;&#xFF1B;</li>
<li><code>source-map</code> &#x6A21;&#x5F0F;&#x4E0B;&#x4F1A;&#x628A; Source Map &#x66B4;&#x9732;&#x51FA;&#x53BB;&#xFF0C;&#x5982;&#x679C;&#x6784;&#x5EFA;&#x53D1;&#x5E03;&#x5230;&#x7EBF;&#x4E0A;&#x7684;&#x4EE3;&#x7801;&#x7684; Source Map &#x66B4;&#x9732;&#x51FA;&#x53BB;&#x5C31;&#x7B49;&#x4E8E;&#x6E90;&#x7801;&#x88AB;&#x6CC4;&#x9732;&#xFF1B;</li>
</ul>
<p>&#x4E3A;&#x4E86;&#x89E3;&#x51B3;&#x4EE5;&#x4E0A;&#x4E24;&#x4E2A;&#x95EE;&#x9898;&#xFF0C;&#x53EF;&#x4EE5;&#x8FD9;&#x6837;&#x505A;&#xFF1A;</p>
<ul>
<li>&#x5728;&#x5F00;&#x53D1;&#x73AF;&#x5883;&#x4E0B;&#x628A; <code>devtool</code> &#x8BBE;&#x7F6E;&#x6210; <code>cheap-module-eval-source-map</code>&#xFF0C;&#x56E0;&#x4E3A;&#x751F;&#x6210;&#x8FD9;&#x79CD; Source Map &#x7684;&#x901F;&#x5EA6;&#x6700;&#x5FEB;&#xFF0C;&#x80FD;&#x52A0;&#x901F;&#x6784;&#x5EFA;&#x3002;&#x7531;&#x4E8E;&#x5728;&#x5F00;&#x53D1;&#x73AF;&#x5883;&#x4E0B;&#x4E0D;&#x4F1A;&#x505A;&#x4EE3;&#x7801;&#x538B;&#x7F29;&#xFF0C;Source Map &#x4E2D;&#x5373;&#x4F7F;&#x6CA1;&#x6709;&#x5217;&#x4FE1;&#x606F;&#x4E5F;&#x4E0D;&#x4F1A;&#x5F71;&#x54CD;&#x65AD;&#x70B9;&#x8C03;&#x8BD5;&#xFF1B;</li>
<li>&#x5728;&#x751F;&#x4EA7;&#x73AF;&#x5883;&#x4E0B;&#x628A; <code>devtool</code> &#x8BBE;&#x7F6E;&#x6210; <code>hidden-source-map</code>&#xFF0C;&#x610F;&#x601D;&#x662F;&#x751F;&#x6210;&#x6700;&#x8BE6;&#x7EC6;&#x7684; Source Map&#xFF0C;&#x4F46;&#x4E0D;&#x4F1A;&#x628A; Source Map &#x66B4;&#x9732;&#x51FA;&#x53BB;&#x3002;&#x7531;&#x4E8E;&#x5728;&#x751F;&#x4EA7;&#x73AF;&#x5883;&#x4E0B;&#x4F1A;&#x505A;&#x4EE3;&#x7801;&#x538B;&#x7F29;&#xFF0C;&#x4E00;&#x4E2A; JavaScript &#x6587;&#x4EF6;&#x53EA;&#x6709;&#x4E00;&#x884C;&#xFF0C;&#x6240;&#x4EE5;&#x9700;&#x8981;&#x5217;&#x4FE1;&#x606F;&#x3002;</li>
</ul>
<blockquote>
<p>&#x5728;&#x751F;&#x4EA7;&#x73AF;&#x5883;&#x4E0B;&#x901A;&#x5E38;&#x4E0D;&#x4F1A;&#x628A; Source Map &#x4E0A;&#x4F20;&#x5230; HTTP &#x670D;&#x52A1;&#x5668;&#x8BA9;&#x7528;&#x6237;&#x83B7;&#x53D6;&#xFF0C;&#x800C;&#x662F;&#x4E0A;&#x4F20;&#x5230; JavaScript &#x9519;&#x8BEF;&#x6536;&#x96C6;&#x7CFB;&#x7EDF;&#xFF0C;&#x5728;&#x9519;&#x8BEF;&#x6536;&#x96C6;&#x7CFB;&#x7EDF;&#x4E0A;&#x6839;&#x636E; Source Map &#x548C;&#x6536;&#x96C6;&#x5230;&#x7684; JavaScript &#x8FD0;&#x884C;&#x9519;&#x8BEF;&#x5806;&#x6808;&#x8BA1;&#x7B97;&#x51FA;&#x9519;&#x8BEF;&#x6240;&#x5728;&#x6E90;&#x7801;&#x7684;&#x4F4D;&#x7F6E;&#x3002;</p>
<p>&#x4E0D;&#x8981;&#x5728;&#x751F;&#x4EA7;&#x73AF;&#x5883;&#x4E0B;&#x4F7F;&#x7528; <code>inline</code> &#x6A21;&#x5F0F;&#x7684; Source Map&#xFF0C; &#x56E0;&#x4E3A;&#x8FD9;&#x4F1A;&#x4F7F; JavaScript &#x6587;&#x4EF6;&#x53D8;&#x5F97;&#x5F88;&#x5927;&#xFF0C;&#x800C;&#x4E14;&#x4F1A;&#x6CC4;&#x9732;&#x6E90;&#x7801;&#x3002;</p>
</blockquote>
<h2 id="&#x52A0;&#x8F7D;&#x73B0;&#x6709;&#x7684;-source-map">&#x52A0;&#x8F7D;&#x73B0;&#x6709;&#x7684; Source Map</h2>
<p>&#x6709;&#x4E9B;&#x4ECE; Npm &#x5B89;&#x88C5;&#x7684;&#x7B2C;&#x4E09;&#x65B9;&#x6A21;&#x5757;&#x662F;&#x91C7;&#x7528; ES6 &#x6216;&#x8005; TypeScript &#x7F16;&#x5199;&#x7684;&#xFF0C;&#x5B83;&#x4EEC;&#x5728;&#x53D1;&#x5E03;&#x65F6;&#x4F1A;&#x540C;&#x65F6;&#x5E26;&#x4E0A;&#x7F16;&#x8BD1;&#x51FA;&#x6765;&#x7684; JavaScript &#x6587;&#x4EF6;&#x548C;&#x5BF9;&#x5E94;&#x7684; Source Map &#x6587;&#x4EF6;&#xFF0C;&#x4EE5;&#x65B9;&#x4FBF;&#x4F60;&#x5728;&#x4F7F;&#x7528;&#x5B83;&#x4EEC;&#x51FA;&#x95EE;&#x9898;&#x7684;&#x65F6;&#x5019;&#x8C03;&#x8BD5;&#x5B83;&#x4EEC;&#xFF1B;</p>
<p>&#x9ED8;&#x8BA4;&#x60C5;&#x51B5;&#x4E0B; Webpack &#x662F;&#x4E0D;&#x4F1A;&#x53BB;&#x52A0;&#x8F7D;&#x8FD9;&#x4E9B;&#x9644;&#x52A0;&#x7684; Source Map &#x6587;&#x4EF6;&#x7684;&#xFF0C;Webpack &#x53EA;&#x4F1A;&#x5728;&#x8F6C;&#x6362;&#x8FC7;&#x7A0B;&#x4E2D;&#x751F;&#x6210; Source Map&#x3002;
&#x4E3A;&#x4E86;&#x8BA9; Webpack &#x52A0;&#x8F7D;&#x8FD9;&#x4E9B;&#x9644;&#x52A0;&#x7684; Source Map &#x6587;&#x4EF6;&#xFF0C;&#x9700;&#x8981;&#x5B89;&#x88C5; <a href="https://github.com/webpack-contrib/source-map-loader" target="_blank">source-map-loader</a> &#x3002;
&#x4F7F;&#x7528;&#x65B9;&#x6CD5;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><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">// &#x53EA;&#x52A0;&#x8F7D;&#x4F60;&#x5173;&#x5FC3;&#x7684;&#x76EE;&#x5F55;&#x4E0B;&#x7684; Source Map&#xFF0C;&#x4EE5;&#x63D0;&#x5347;&#x6784;&#x5EFA;&#x901F;&#x5EA6;</span>
        include: [path.resolve(root, <span class="hljs-string">&apos;node_modules/some-components/&apos;</span>)],
        use: [<span class="hljs-string">&apos;source-map-loader&apos;</span>],
        <span class="hljs-comment">// &#x8981;&#x628A; source-map-loader &#x7684;&#x6267;&#x884C;&#x987A;&#x5E8F;&#x653E;&#x5230;&#x6700;&#x524D;&#x9762;&#xFF0C;&#x5982;&#x679C;&#x5728; source-map-loader &#x4E4B;&#x524D;&#x6709; Loader &#x8F6C;&#x6362;&#x4E86;&#x8BE5; JavaScript &#x6587;&#x4EF6;&#xFF0C;&#x4F1A;&#x5BFC;&#x81F4; Source Map &#x6620;&#x5C04;&#x9519;&#x8BEF;</span>
        enforce: <span class="hljs-string">&apos;pre&apos;</span>
      }
    ]
  }
};
</code></pre>
<blockquote>
<p>&#x7531;&#x4E8E; source-map-loader &#x5728;&#x52A0;&#x8F7D; Source Map &#x65F6;&#x8BA1;&#x7B97;&#x91CF;&#x5F88;&#x5927;&#xFF0C;&#x56E0;&#x6B64;&#x8981;&#x907F;&#x514D;&#x8BA9;&#x8BE5; Loader &#x5904;&#x7406;&#x8FC7;&#x591A;&#x7684;&#x6587;&#x4EF6;&#xFF0C;&#x4E0D;&#x7136;&#x4F1A;&#x5BFC;&#x81F4;&#x6784;&#x5EFA;&#x901F;&#x5EA6;&#x7F13;&#x6162;&#x3002;
&#x901A;&#x5E38;&#x4F1A;&#x91C7;&#x7528; <code>include</code> &#x53BB;&#x547D;&#x4E2D;&#x53EA;&#x5173;&#x5FC3;&#x7684;&#x6587;&#x4EF6;&#x3002;</p>
</blockquote>
<p>&#x518D;&#x5B89;&#x88C5;&#x65B0;&#x5F15;&#x5165;&#x7684;&#x4F9D;&#x8D56;&#xFF1A;</p>
<pre><code class="lang-bash">npm i -D <span class="hljs-built_in">source</span>-map-loader
</code></pre>
<p>&#x91CD;&#x542F; Webpack &#x540E;&#xFF0C;&#x4F60;&#x5C31;&#x80FD;&#x5728;&#x6D4F;&#x89C8;&#x5668;&#x4E2D;&#x8C03;&#x8BD5; <code>node_modules/some-components/</code> &#x76EE;&#x5F55;&#x4E0B;&#x7684;&#x6E90;&#x7801;&#x4E86;&#x3002;</p>

                                
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