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                    深入浅出 Webpack
            
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                    前言
            
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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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                    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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<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">
  
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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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                                <h1 id="3-2-&#x4F7F;&#x7528;-typescript-&#x8BED;&#x8A00;">3-2 &#x4F7F;&#x7528; TypeScript &#x8BED;&#x8A00;</h1>
<h2 id="&#x8BA4;&#x8BC6;-typescript">&#x8BA4;&#x8BC6; TypeScript</h2>
<p><a href="http://www.typescriptlang.org" target="_blank">TypeScript</a> &#x662F; JavaScript &#x7684;&#x4E00;&#x4E2A;&#x8D85;&#x96C6;&#xFF0C;&#x4E3B;&#x8981;&#x63D0;&#x4F9B;&#x4E86;&#x7C7B;&#x578B;&#x68C0;&#x67E5;&#x7CFB;&#x7EDF;&#x548C;&#x5BF9; ES6 &#x8BED;&#x6CD5;&#x7684;&#x652F;&#x6301;&#xFF0C;&#x4F46;&#x4E0D;&#x652F;&#x6301;&#x65B0;&#x7684; API&#x3002;
&#x76EE;&#x524D;&#x6CA1;&#x6709;&#x4EFB;&#x4F55;&#x73AF;&#x5883;&#x652F;&#x6301;&#x8FD0;&#x884C;&#x539F;&#x751F;&#x7684; TypeScript &#x4EE3;&#x7801;&#xFF0C;&#x5FC5;&#x987B;&#x901A;&#x8FC7;&#x6784;&#x5EFA;&#x628A;&#x5B83;&#x8F6C;&#x6362;&#x6210; JavaScript &#x4EE3;&#x7801;&#x540E;&#x624D;&#x80FD;&#x8FD0;&#x884C;&#x3002;</p>
<p></p><p>&#x60F3;&#x6DF1;&#x5165;&#x5B66;&#x4E60; TypeScript&#xFF0C;&#x63A8;&#x8350;&#x300A;Learning TypeScript&#x4E2D;&#x6587;&#x7248;&#x300B;&#xFF1A;</p>
<a href="http://union-click.jd.com/jdc?d=R5StrZ" target="_blank">
<img src="http://img13.360buyimg.com/n1/jfs/t7579/323/998195052/27290/9a6b8b9b/59994fb3N86192622.jpg">
</a><p></p>
<p>&#x6539;&#x9020;&#x4E0B;&#x524D;&#x9762;&#x7528;&#x8FC7;&#x7684;&#x4F8B;&#x5B50; <code>Hello,Webpack</code>&#xFF0C;&#x7528; TypeScript &#x91CD;&#x5199; JavaScript&#x3002;&#x7531;&#x4E8E; TypeScript &#x662F; JavaScript &#x7684;&#x8D85;&#x96C6;&#xFF0C;&#x76F4;&#x63A5;&#x628A;&#x540E;&#x7F00; <code>.js</code> &#x6539;&#x6210; <code>.ts</code> &#x662F;&#x53EF;&#x4EE5;&#x7684;&#x3002;
&#x4F46;&#x4E3A;&#x4E86;&#x4F53;&#x73B0;&#x51FA; TypeScript &#x7684;&#x4E0D;&#x540C;&#xFF0C;&#x6211;&#x4EEC;&#x91CD;&#x5199; JavaScript &#x4EE3;&#x7801;&#x4E3A;&#x5982;&#x4E0B;&#xFF0C;&#x52A0;&#x5165;&#x7C7B;&#x578B;&#x68C0;&#x67E5;&#xFF1A;</p>
<pre><code class="lang-typescript"><span class="hljs-comment">// show.ts</span>
<span class="hljs-comment">// &#x64CD;&#x4F5C; DOM &#x5143;&#x7D20;&#xFF0C;&#x628A; content &#x663E;&#x793A;&#x5230;&#x7F51;&#x9875;&#x4E0A;</span>
<span class="hljs-comment">// &#x901A;&#x8FC7; ES6 &#x6A21;&#x5757;&#x89C4;&#x8303;&#x5BFC;&#x51FA; show &#x51FD;&#x6570;</span>
<span class="hljs-comment">// &#x7ED9; show &#x51FD;&#x6570;&#x589E;&#x52A0;&#x7C7B;&#x578B;&#x68C0;&#x67E5; </span>
<span class="hljs-keyword">export</span> <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">show</span>(<span class="hljs-params">content: <span class="hljs-built_in">string</span></span>) </span>{
  <span class="hljs-built_in">window</span>.document.getElementById(<span class="hljs-string">&apos;app&apos;</span>).innerText = <span class="hljs-string">&apos;Hello,&apos;</span> + content;
}
<span class="hljs-comment">// main.ts</span>
<span class="hljs-comment">// &#x901A;&#x8FC7; ES6 &#x6A21;&#x5757;&#x89C4;&#x8303;&#x5BFC;&#x5165; show &#x51FD;&#x6570;</span>
<span class="hljs-keyword">import</span> {show} from <span class="hljs-string">&apos;./show&apos;</span>;
<span class="hljs-comment">// &#x6267;&#x884C; show &#x51FD;&#x6570;</span>
show(<span class="hljs-string">&apos;Webpack&apos;</span>);
</code></pre>
<p>TypeScript &#x5B98;&#x65B9;&#x63D0;&#x4F9B;&#x4E86;&#x80FD;&#x628A; TypeScript &#x8F6C;&#x6362;&#x6210; JavaScript &#x7684;&#x7F16;&#x8BD1;&#x5668;&#x3002;
&#x4F60;&#x9700;&#x8981;&#x5728;&#x5F53;&#x524D;&#x9879;&#x76EE;&#x6839;&#x76EE;&#x5F55;&#x4E0B;&#x65B0;&#x5EFA;&#x4E00;&#x4E2A;&#x7528;&#x4E8E;&#x914D;&#x7F6E;&#x7F16;&#x8BD1;&#x9009;&#x9879;&#x7684; <code>tsconfig.json</code> &#x6587;&#x4EF6;&#xFF0C;&#x7F16;&#x8BD1;&#x5668;&#x9ED8;&#x8BA4;&#x4F1A;&#x8BFB;&#x53D6;&#x548C;&#x4F7F;&#x7528;&#x8FD9;&#x4E2A;&#x6587;&#x4EF6;&#xFF0C;&#x914D;&#x7F6E;&#x6587;&#x4EF6;&#x5185;&#x5BB9;&#x5927;&#x81F4;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-json">{
  <span class="hljs-string">&quot;compilerOptions&quot;</span>: {
    <span class="hljs-string">&quot;module&quot;</span>: <span class="hljs-string">&quot;commonjs&quot;</span>, <span class="hljs-comment">// &#x7F16;&#x8BD1;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x91C7;&#x7528;&#x7684;&#x6A21;&#x5757;&#x89C4;&#x8303;</span>
    <span class="hljs-string">&quot;target&quot;</span>: <span class="hljs-string">&quot;es5&quot;</span>, <span class="hljs-comment">// &#x7F16;&#x8BD1;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x91C7;&#x7528; ES &#x7684;&#x54EA;&#x4E2A;&#x7248;&#x672C;</span>
    <span class="hljs-string">&quot;sourceMap&quot;</span>: <span class="hljs-literal">true</span> <span class="hljs-comment">// &#x8F93;&#x51FA; Source Map &#x65B9;&#x4FBF;&#x8C03;&#x8BD5;</span>
  },
  <span class="hljs-string">&quot;exclude&quot;</span>: [ <span class="hljs-comment">// &#x4E0D;&#x7F16;&#x8BD1;&#x8FD9;&#x4E9B;&#x76EE;&#x5F55;&#x91CC;&#x7684;&#x6587;&#x4EF6;</span>
    <span class="hljs-string">&quot;node_modules&quot;</span>
  ]
}
</code></pre>
<p>&#x901A;&#x8FC7; <code>npm install -g typescript</code> &#x5B89;&#x88C5;&#x7F16;&#x8BD1;&#x5668;&#x5230;&#x5168;&#x5C40;&#x540E;&#xFF0C;&#x4F60;&#x53EF;&#x4EE5;&#x901A;&#x8FC7; <code>tsc hello.ts</code> &#x547D;&#x4EE4;&#x7F16;&#x8BD1;&#x51FA; <code>hello.js</code> &#x548C; <code>hello.js.map</code> &#x6587;&#x4EF6;&#x3002;</p>
<h2 id="&#x51CF;&#x5C11;&#x4EE3;&#x7801;&#x5197;&#x4F59;">&#x51CF;&#x5C11;&#x4EE3;&#x7801;&#x5197;&#x4F59;</h2>
<p>TypeScript &#x7F16;&#x8BD1;&#x5668;&#x4F1A;&#x6709;&#x548C;&#x5728; <a href="3-1&#x4F7F;&#x7528;ES6&#x8BED;&#x8A00;.html">3-1 &#x4F7F;&#x7528;ES6&#x8BED;&#x8A00;</a>&#x4E2D; Babel &#x4E00;&#x6837;&#x7684;&#x95EE;&#x9898;&#xFF1A;&#x5728;&#x628A; ES6 &#x8BED;&#x6CD5;&#x8F6C;&#x6362;&#x6210; ES5 &#x8BED;&#x6CD5;&#x65F6;&#x9700;&#x8981;&#x6CE8;&#x5165;&#x8F85;&#x52A9;&#x51FD;&#x6570;&#xFF0C;
&#x4E3A;&#x4E86;&#x4E0D;&#x8BA9;&#x540C;&#x6837;&#x7684;&#x8F85;&#x52A9;&#x51FD;&#x6570;&#x91CD;&#x590D;&#x7684;&#x51FA;&#x73B0;&#x5728;&#x591A;&#x4E2A;&#x6587;&#x4EF6;&#x4E2D;&#xFF0C;&#x53EF;&#x4EE5;&#x5F00;&#x542F; TypeScript &#x7F16;&#x8BD1;&#x5668;&#x7684; <code>importHelpers</code> &#x9009;&#x9879;&#xFF0C;&#x4FEE;&#x6539; <code>tsconfig.json</code> &#x6587;&#x4EF6;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-json">{
  <span class="hljs-string">&quot;compilerOptions&quot;</span>: {
    <span class="hljs-string">&quot;importHelpers&quot;</span>: <span class="hljs-literal">true</span>
  }
}
</code></pre>
<p>&#x8BE5;&#x9009;&#x9879;&#x7684;&#x539F;&#x7406;&#x548C; Babel &#x4E2D;&#x4ECB;&#x7ECD;&#x7684; <code>babel-plugin-transform-runtime</code> &#x975E;&#x5E38;&#x7C7B;&#x4F3C;&#xFF0C;&#x4F1A;&#x628A;&#x8F85;&#x52A9;&#x51FD;&#x6570;&#x6362;&#x6210;&#x5982;&#x4E0B;&#x5BFC;&#x5165;&#x8BED;&#x53E5;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">var</span> _tslib = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;tslib&apos;</span>);
_tslib._extend(target);
</code></pre>
<p>&#x8FD9;&#x4F1A;&#x5BFC;&#x81F4;&#x7F16;&#x8BD1;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x4F9D;&#x8D56; <code>tslib</code> &#x8FD9;&#x4E2A;&#x8FF7;&#x4F60;&#x5E93;&#xFF0C;&#x4F46;&#x907F;&#x514D;&#x4E86;&#x4EE3;&#x7801;&#x5197;&#x4F59;&#x3002;</p>
<h2 id="&#x96C6;&#x6210;-webpack">&#x96C6;&#x6210; Webpack</h2>
<p>&#x8981;&#x8BA9; Webpack &#x652F;&#x6301; TypeScript&#xFF0C;&#x9700;&#x8981;&#x89E3;&#x51B3;&#x4EE5;&#x4E0B;2&#x4E2A;&#x95EE;&#x9898;&#xFF1A;</p>
<ol>
<li>&#x901A;&#x8FC7; Loader &#x628A; TypeScript &#x8F6C;&#x6362;&#x6210; JavaScript&#x3002;</li>
<li>Webpack &#x5728;&#x5BFB;&#x627E;&#x6A21;&#x5757;&#x5BF9;&#x5E94;&#x7684;&#x6587;&#x4EF6;&#x65F6;&#x9700;&#x8981;&#x5C1D;&#x8BD5; <code>ts</code> &#x540E;&#x7F00;&#x3002;</li>
</ol>
<p>&#x5BF9;&#x4E8E;&#x95EE;&#x9898;1&#xFF0C;&#x793E;&#x533A;&#x5DF2;&#x7ECF;&#x51FA;&#x73B0;&#x4E86;&#x51E0;&#x4E2A;&#x53EF;&#x7528;&#x7684; Loader&#xFF0C;&#x63A8;&#x8350;&#x901F;&#x5EA6;&#x66F4;&#x5FEB;&#x7684; <a href="https://github.com/s-panferov/awesome-typescript-loader" target="_blank">awesome-typescript-loader</a>&#x3002;
&#x5BF9;&#x4E8E;&#x95EE;&#x9898;2&#xFF0C;&#x6839;&#x636E;<a href="../2&#x914D;&#x7F6E;/2-4Resolve.html#extensions">2-4 Resolve &#x4E2D;&#x7684; extensions</a> &#x6211;&#x4EEC;&#x9700;&#x8981;&#x4FEE;&#x6539;&#x9ED8;&#x8BA4;&#x7684; <code>resolve.extensions</code> &#x914D;&#x7F6E;&#x9879;&#x3002;</p>
<p>&#x7EFC;&#x4E0A;&#xFF0C;&#x76F8;&#x5173; Webpack &#x914D;&#x7F6E;&#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-built_in">module</span>.exports = {
  <span class="hljs-comment">// &#x6267;&#x884C;&#x5165;&#x53E3;&#x6587;&#x4EF6;</span>
  entry: <span class="hljs-string">&apos;./main&apos;</span>,
  output: {
    filename: <span class="hljs-string">&apos;bundle.js&apos;</span>,
    path: path.resolve(__dirname, <span class="hljs-string">&apos;./dist&apos;</span>),
  },
  resolve: {
    <span class="hljs-comment">// &#x5148;&#x5C1D;&#x8BD5; ts &#x540E;&#x7F00;&#x7684; TypeScript &#x6E90;&#x7801;&#x6587;&#x4EF6;</span>
    extensions: [<span class="hljs-string">&apos;.ts&apos;</span>, <span class="hljs-string">&apos;.js&apos;</span>] 
  },
  <span class="hljs-built_in">module</span>: {
    rules: [
      {
        test: <span class="hljs-regexp">/\.ts$/</span>,
        loader: <span class="hljs-string">&apos;awesome-typescript-loader&apos;</span>
      }
    ]
  },
  devtool: <span class="hljs-string">&apos;source-map&apos;</span>,<span class="hljs-comment">// &#x8F93;&#x51FA; Source Map &#x65B9;&#x4FBF;&#x5728;&#x6D4F;&#x89C8;&#x5668;&#x91CC;&#x8C03;&#x8BD5; TypeScript &#x4EE3;&#x7801;</span>
};
</code></pre>
<p>&#x5728;&#x8FD0;&#x884C;&#x6784;&#x5EFA;&#x524D;&#x9700;&#x8981;&#x5B89;&#x88C5;&#x4E0A;&#x9762;&#x7528;&#x5230;&#x7684;&#x4F9D;&#x8D56;&#xFF1A;</p>
<pre><code class="lang-bash">npm i -D typescript awesome-typescript-loader
</code></pre>
<p>&#x5B89;&#x88C5;&#x6210;&#x529F;&#x540E;&#x91CD;&#x65B0;&#x6267;&#x884C;&#x6784;&#x5EFA;&#xFF0C;&#x4F60;&#x5C06;&#x4F1A;&#x5728; <code>dist</code> &#x76EE;&#x5F55;&#x770B;&#x5230;&#x8F93;&#x51FA;&#x7684; JavaScript &#x6587;&#x4EF6; <code>bundle.js</code>&#xFF0C;&#x548C;&#x5BF9;&#x5E94;&#x7684; Source Map &#x6587;&#x4EF6; <code>bundle.js.map</code>&#x3002;
&#x5728;&#x6D4F;&#x89C8;&#x5668;&#x91CC;&#x6253;&#x5F00; <code>index.html</code> &#x9875;&#x9762;&#x540E;&#xFF0C;&#x6765;&#x5F00;&#x53D1;&#x5DE5;&#x5177;&#x91CC;&#x53EF;&#x4EE5;&#x770B;&#x5230;&#x548C;&#x8C03;&#x8BD5;&#x7528; TypeScript &#x7F16;&#x5199;&#x7684;&#x6E90;&#x7801;&#x3002;</p>
<blockquote>
<p>&#x672C;&#x5B9E;&#x4F8B;<a href="http://webpack.wuhaolin.cn/3-2&#x4F7F;&#x7528;TypeScript&#x8BED;&#x8A00;.zip" target="_blank">&#x63D0;&#x4F9B;&#x9879;&#x76EE;&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a></p>
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