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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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<li class="chapter " data-level="1.5.20" data-path="../3实战/3-20加载SVG.html">
  
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                    3-20 加载SVG
            
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<li class="chapter " data-level="1.5.21" data-path="../3实战/3-21加载SourceMap.html">
  
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                    3-21 加载 Source Map
            
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<li class="chapter " data-level="1.5.22" data-path="../3实战/3-22实战总结.html">
  
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                    3-22 实战总结
            
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<li class="chapter " data-level="1.6" data-path="./">
  
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                    第4章 优化
            
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<li class="chapter " data-level="1.6.1" data-path="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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<li class="chapter " data-level="1.6.2" data-path="4-2使用DllPlugin.html">
  
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                    4-2 使用 DllPlugin
            
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<li class="chapter " data-level="1.6.3" data-path="4-3使用HappyPack.html">
  
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                    4-3 使用 HappyPack
            
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<li class="chapter " data-level="1.6.4" data-path="4-4使用ParallelUglifyPlugin.html">
  
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                    4-4 使用 ParallelUglifyPlugin
            
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<li class="chapter " data-level="1.6.5" data-path="4-5使用自动刷新.html">
  
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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="4-6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 active" data-level="1.6.7" data-path="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="4-8压缩代码.html">
  
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                    4-8 压缩代码
            
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<li class="chapter " data-level="1.6.9" data-path="4-9CDN加速.html">
  
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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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<li class="chapter " data-level="1.6.11" data-path="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="4-12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="4-13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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<li class="chapter " data-level="1.6.15" data-path="4-15输出分析.html">
  
  <a href="4-15输出分析.html">
    
                    
                    4-15 输出分析
            
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</li>

<li class="chapter " data-level="1.6.16" data-path="4-16优化总结.html">
  
  <a href="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/">
  
  <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">
  
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                    5-2 输出文件分析
            
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</li>

<li class="chapter " data-level="1.7.3" data-path="../5原理/5-3编写Loader.html">
  
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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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                    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">
  
  <a href="../附录/常用Plugins.html">
    
                    
                    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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                                <h1 id="4-7-&#x533A;&#x5206;&#x73AF;&#x5883;">4-7 &#x533A;&#x5206;&#x73AF;&#x5883;</h1>
<h2 id="&#x4E3A;&#x4EC0;&#x4E48;&#x9700;&#x8981;&#x533A;&#x5206;&#x73AF;&#x5883;">&#x4E3A;&#x4EC0;&#x4E48;&#x9700;&#x8981;&#x533A;&#x5206;&#x73AF;&#x5883;</h2>
<p>&#x5728;&#x5F00;&#x53D1;&#x7F51;&#x9875;&#x7684;&#x65F6;&#x5019;&#xFF0C;&#x4E00;&#x822C;&#x90FD;&#x4F1A;&#x6709;&#x591A;&#x5957;&#x8FD0;&#x884C;&#x73AF;&#x5883;&#xFF0C;&#x4F8B;&#x5982;&#xFF1A;</p>
<ol>
<li>&#x5728;&#x5F00;&#x53D1;&#x8FC7;&#x7A0B;&#x4E2D;&#x65B9;&#x4FBF;&#x5F00;&#x53D1;&#x8C03;&#x8BD5;&#x7684;&#x73AF;&#x5883;&#x3002;</li>
<li>&#x53D1;&#x5E03;&#x5230;&#x7EBF;&#x4E0A;&#x7ED9;&#x7528;&#x6237;&#x4F7F;&#x7528;&#x7684;&#x8FD0;&#x884C;&#x73AF;&#x5883;&#x3002;</li>
</ol>
<p>&#x8FD9;&#x4E24;&#x5957;&#x4E0D;&#x540C;&#x7684;&#x73AF;&#x5883;&#x867D;&#x7136;&#x90FD;&#x662F;&#x7531;&#x540C;&#x4E00;&#x5957;&#x6E90;&#x4EE3;&#x7801;&#x7F16;&#x8BD1;&#x800C;&#x6765;&#xFF0C;&#x4F46;&#x662F;&#x4EE3;&#x7801;&#x5185;&#x5BB9;&#x5374;&#x4E0D;&#x4E00;&#x6837;&#xFF0C;&#x5DEE;&#x5F02;&#x5305;&#x62EC;&#xFF1A;</p>
<ul>
<li>&#x7EBF;&#x4E0A;&#x4EE3;&#x7801;&#x88AB;&#x901A;&#x8FC7; <a href="4-8&#x538B;&#x7F29;&#x4EE3;&#x7801;.html">4-8 &#x538B;&#x7F29;&#x4EE3;&#x7801;</a> &#x4E2D;&#x63D0;&#x5230;&#x7684;&#x65B9;&#x6CD5;&#x538B;&#x7F29;&#x8FC7;&#x3002;</li>
<li>&#x5F00;&#x53D1;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x5305;&#x542B;&#x4E00;&#x4E9B;&#x7528;&#x4E8E;&#x63D0;&#x793A;&#x5F00;&#x53D1;&#x8005;&#x7684;&#x63D0;&#x793A;&#x65E5;&#x5FD7;&#xFF0C;&#x8FD9;&#x4E9B;&#x65E5;&#x5FD7;&#x666E;&#x901A;&#x7528;&#x6237;&#x4E0D;&#x53EF;&#x80FD;&#x53BB;&#x770B;&#x5B83;&#x3002;</li>
<li>&#x5F00;&#x53D1;&#x7528;&#x7684;&#x4EE3;&#x7801;&#x6240;&#x8FDE;&#x63A5;&#x7684;&#x540E;&#x7AEF;&#x6570;&#x636E;&#x63A5;&#x53E3;&#x5730;&#x5740;&#x4E5F;&#x53EF;&#x80FD;&#x548C;&#x7EBF;&#x4E0A;&#x73AF;&#x5883;&#x4E0D;&#x540C;&#xFF0C;&#x56E0;&#x4E3A;&#x8981;&#x907F;&#x514D;&#x5F00;&#x53D1;&#x8FC7;&#x7A0B;&#x4E2D;&#x9020;&#x6210;&#x5BF9;&#x7EBF;&#x4E0A;&#x6570;&#x636E;&#x7684;&#x5F71;&#x54CD;&#x3002;</li>
</ul>
<p>&#x4E3A;&#x4E86;&#x5C3D;&#x53EF;&#x80FD;&#x7684;&#x590D;&#x7528;&#x4EE3;&#x7801;&#xFF0C;&#x5728;&#x6784;&#x5EFA;&#x7684;&#x8FC7;&#x7A0B;&#x4E2D;&#x9700;&#x8981;&#x6839;&#x636E;&#x76EE;&#x6807;&#x4EE3;&#x7801;&#x8981;&#x8FD0;&#x884C;&#x7684;&#x73AF;&#x5883;&#x800C;&#x8F93;&#x51FA;&#x4E0D;&#x540C;&#x7684;&#x4EE3;&#x7801;&#xFF0C;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x4E00;&#x5957;&#x673A;&#x5236;&#x5728;&#x6E90;&#x7801;&#x4E2D;&#x53BB;&#x533A;&#x5206;&#x73AF;&#x5883;&#x3002;
&#x5E78;&#x8FD0;&#x7684;&#x662F; Webpack &#x5DF2;&#x7ECF;&#x4E3A;&#x6211;&#x4EEC;&#x5B9E;&#x73B0;&#x4E86;&#x8FD9;&#x70B9;&#x3002;</p>
<h2 id="&#x5982;&#x4F55;&#x533A;&#x5206;&#x73AF;&#x5883;">&#x5982;&#x4F55;&#x533A;&#x5206;&#x73AF;&#x5883;</h2>
<p>&#x5177;&#x4F53;&#x533A;&#x5206;&#x65B9;&#x6CD5;&#x5F88;&#x7B80;&#x5355;&#xFF0C;&#x5728;&#x6E90;&#x7801;&#x4E2D;&#x901A;&#x8FC7;&#x5982;&#x4E0B;&#x65B9;&#x5F0F;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">if</span> (process.env.NODE_ENV === <span class="hljs-string">&apos;production&apos;</span>) {
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x4F60;&#x6B63;&#x5728;&#x7EBF;&#x4E0A;&#x73AF;&#x5883;&apos;</span>);
} <span class="hljs-keyword">else</span> {
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x4F60;&#x6B63;&#x5728;&#x4F7F;&#x7528;&#x5F00;&#x53D1;&#x73AF;&#x5883;&apos;</span>);
}
</code></pre>
<p>&#x5176;&#x5927;&#x6982;&#x539F;&#x7406;&#x662F;&#x501F;&#x52A9;&#x4E8E;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x7684;&#x503C;&#x53BB;&#x5224;&#x65AD;&#x6267;&#x884C;&#x54EA;&#x4E2A;&#x5206;&#x652F;&#x3002;</p>
<p>&#x5F53;&#x4F60;&#x7684;&#x4EE3;&#x7801;&#x4E2D;&#x51FA;&#x73B0;&#x4E86;&#x4F7F;&#x7528; <a href="https://nodejs.org/api/process.html" target="_blank">process</a> &#x6A21;&#x5757;&#x7684;&#x8BED;&#x53E5;&#x65F6;&#xFF0C;Webpack &#x5C31;&#x81EA;&#x52A8;&#x6253;&#x5305;&#x8FDB; process &#x6A21;&#x5757;&#x7684;&#x4EE3;&#x7801;&#x4EE5;&#x652F;&#x6301;&#x975E; Node.js &#x7684;&#x8FD0;&#x884C;&#x73AF;&#x5883;&#x3002;
&#x5F53;&#x4F60;&#x7684;&#x4EE3;&#x7801;&#x4E2D;&#x6CA1;&#x6709;&#x4F7F;&#x7528; process &#x65F6;&#x5C31;&#x4E0D;&#x4F1A;&#x6253;&#x5305;&#x8FDB; process &#x6A21;&#x5757;&#x7684;&#x4EE3;&#x7801;&#x3002;&#x8FD9;&#x4E2A;&#x6CE8;&#x5165;&#x7684; process &#x6A21;&#x5757;&#x4F5C;&#x7528;&#x662F;&#x4E3A;&#x4E86;&#x6A21;&#x62DF; Node.js &#x4E2D;&#x7684; process&#xFF0C;&#x4EE5;&#x652F;&#x6301;&#x4E0A;&#x9762;&#x4F7F;&#x7528;&#x7684; <code>process.env.NODE_ENV === &apos;production&apos;</code> &#x8BED;&#x53E5;&#x3002;</p>
<p>&#x5728;&#x6784;&#x5EFA;&#x7EBF;&#x4E0A;&#x73AF;&#x5883;&#x4EE3;&#x7801;&#x65F6;&#xFF0C;&#x9700;&#x8981;&#x7ED9;&#x5F53;&#x524D;&#x8FD0;&#x884C;&#x73AF;&#x5883;&#x8BBE;&#x7F6E;&#x73AF;&#x5883;&#x53D8;&#x91CF; <code>NODE_ENV = &apos;production&apos;</code>&#xFF0C;Webpack &#x76F8;&#x5173;&#x914D;&#x7F6E;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">const</span> DefinePlugin = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;webpack/lib/DefinePlugin&apos;</span>);

<span class="hljs-built_in">module</span>.exports = {
  plugins: [
    <span class="hljs-keyword">new</span> DefinePlugin({
      <span class="hljs-comment">// &#x5B9A;&#x4E49; NODE_ENV &#x73AF;&#x5883;&#x53D8;&#x91CF;&#x4E3A; production</span>
      <span class="hljs-string">&apos;process.env&apos;</span>: {
        NODE_ENV: <span class="hljs-built_in">JSON</span>.stringify(<span class="hljs-string">&apos;production&apos;</span>)
      }
    }),
  ],
};
</code></pre>
<blockquote>
<p>&#x6CE8;&#x610F;&#x5728;&#x5B9A;&#x4E49;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x7684;&#x503C;&#x65F6;&#x7528; <code>JSON.stringify</code> &#x5305;&#x88F9;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x539F;&#x56E0;&#x662F;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x7684;&#x503C;&#x9700;&#x8981;&#x662F;&#x4E00;&#x4E2A;&#x7531;&#x53CC;&#x5F15;&#x53F7;&#x5305;&#x88F9;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x800C; <code>JSON.stringify(&apos;production&apos;)</code>&#x7684;&#x503C;&#x6B63;&#x597D;&#x7B49;&#x4E8E;<code>&apos;&quot;production&quot;&apos;</code>&#x3002;</p>
</blockquote>
<p>&#x6267;&#x884C;&#x6784;&#x5EFA;&#x540E;&#xFF0C;&#x4F60;&#x4F1A;&#x5728;&#x8F93;&#x51FA;&#x7684;&#x6587;&#x4EF6;&#x4E2D;&#x53D1;&#x73B0;&#x5982;&#x4E0B;&#x4EE3;&#x7801;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">if</span> (<span class="hljs-literal">true</span>) {
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x4F60;&#x6B63;&#x5728;&#x4F7F;&#x7528;&#x7EBF;&#x4E0A;&#x73AF;&#x5883;&apos;</span>);
} <span class="hljs-keyword">else</span> {
  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x4F60;&#x6B63;&#x5728;&#x4F7F;&#x7528;&#x5F00;&#x53D1;&#x73AF;&#x5883;&apos;</span>);
}
</code></pre>
<p>&#x5B9A;&#x4E49;&#x7684;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x7684;&#x503C;&#x88AB;&#x4EE3;&#x5165;&#x5230;&#x4E86;&#x6E90;&#x7801;&#x4E2D;&#xFF0C;<code>process.env.NODE_ENV === &apos;production&apos;</code> &#x88AB;&#x76F4;&#x63A5;&#x66FF;&#x6362;&#x6210;&#x4E86; <code>true</code>&#x3002;
&#x5E76;&#x4E14;&#x7531;&#x4E8E;&#x6B64;&#x65F6;&#x8BBF;&#x95EE; process &#x7684;&#x8BED;&#x53E5;&#x88AB;&#x66FF;&#x6362;&#x4E86;&#x800C;&#x6CA1;&#x6709;&#x4E86;&#xFF0C;Webpack &#x4E5F;&#x4E0D;&#x4F1A;&#x6253;&#x5305;&#x8FDB; process &#x6A21;&#x5757;&#x4E86;&#x3002;</p>
<p>DefinePlugin &#x5B9A;&#x4E49;&#x7684;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x53EA;&#x5BF9; Webpack &#x9700;&#x8981;&#x5904;&#x7406;&#x7684;&#x4EE3;&#x7801;&#x6709;&#x6548;&#xFF0C;&#x800C;&#x4E0D;&#x4F1A;&#x5F71;&#x54CD; Node.js &#x8FD0;&#x884C;&#x65F6;&#x7684;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x7684;&#x503C;&#x3002;</p>
<p>&#x901A;&#x8FC7; Shell &#x811A;&#x672C;&#x7684;&#x65B9;&#x5F0F;&#x53BB;&#x5B9A;&#x4E49;&#x7684;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#xFF0C;&#x4F8B;&#x5982; <code>NODE_ENV=production webpack</code>&#xFF0C;Webpack &#x662F;&#x4E0D;&#x8BA4;&#x8BC6;&#x7684;&#xFF0C;&#x5BF9; Webpack &#x9700;&#x8981;&#x5904;&#x7406;&#x7684;&#x4EE3;&#x7801;&#x4E2D;&#x7684;&#x73AF;&#x5883;&#x533A;&#x5206;&#x8BED;&#x53E5;&#x662F;&#x6CA1;&#x6709;&#x4F5C;&#x7528;&#x7684;&#x3002;</p>
<p>&#x4E5F;&#x5C31;&#x662F;&#x8BF4;&#x53EA;&#x9700;&#x8981;&#x901A;&#x8FC7; DefinePlugin &#x5B9A;&#x4E49;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#x5C31;&#x80FD;&#x4F7F;&#x4E0A;&#x9762;&#x4ECB;&#x7ECD;&#x7684;&#x73AF;&#x5883;&#x533A;&#x5206;&#x8BED;&#x53E5;&#x6B63;&#x5E38;&#x5DE5;&#x4F5C;&#xFF0C;&#x6CA1;&#x5FC5;&#x8981;&#x53C8;&#x901A;&#x8FC7; Shell &#x811A;&#x672C;&#x7684;&#x65B9;&#x5F0F;&#x53BB;&#x5B9A;&#x4E49;&#x4E00;&#x904D;&#x3002;</p>
<p>&#x5982;&#x679C;&#x4F60;&#x60F3;&#x8BA9; Webpack &#x4F7F;&#x7528;&#x901A;&#x8FC7; Shell &#x811A;&#x672C;&#x7684;&#x65B9;&#x5F0F;&#x53BB;&#x5B9A;&#x4E49;&#x7684;&#x73AF;&#x5883;&#x53D8;&#x91CF;&#xFF0C;&#x4F60;&#x53EF;&#x4EE5;&#x4F7F;&#x7528; EnvironmentPlugin&#xFF0C;&#x4EE3;&#x7801;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">new</span> webpack.EnvironmentPlugin([<span class="hljs-string">&apos;NODE_ENV&apos;</span>])
</code></pre>
<p>&#x4EE5;&#x4E0A;&#x8FD9;&#x53E5;&#x4EE3;&#x7801;&#x5B9E;&#x9645;&#x4E0A;&#x7B49;&#x4EF7;&#x4E8E;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">new</span> webpack.DefinePlugin({
  <span class="hljs-string">&apos;process.env.NODE_ENV&apos;</span>: <span class="hljs-built_in">JSON</span>.stringify(process.env.NODE_ENV),
})
</code></pre>
<h2 id="&#x7ED3;&#x5408;-uglifyjs">&#x7ED3;&#x5408; UglifyJS</h2>
<p>&#x5176;&#x5B9E;&#x4EE5;&#x4E0A;&#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x8FD8;&#x53EF;&#x4EE5;&#x8FDB;&#x4E00;&#x6B65;&#x4F18;&#x5316;&#xFF0C;&#x56E0;&#x4E3A; <code>if(true)</code> &#x8BED;&#x53E5;&#x6C38;&#x8FDC;&#x53EA;&#x4F1A;&#x6267;&#x884C;&#x524D;&#x4E00;&#x4E2A;&#x5206;&#x652F;&#x4E2D;&#x7684;&#x4EE3;&#x7801;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x8BF4;&#x6700;&#x4F73;&#x7684;&#x8F93;&#x51FA;&#x5176;&#x5B9E;&#x5E94;&#x8BE5;&#x76F4;&#x63A5;&#x662F;&#xFF1A;</p>
<pre><code class="lang-js">  <span class="hljs-built_in">console</span>.log(<span class="hljs-string">&apos;&#x4F60;&#x6B63;&#x5728;&#x7EBF;&#x4E0A;&#x73AF;&#x5883;&apos;</span>);
</code></pre>
<p>Webpack &#x6CA1;&#x6709;&#x5B9E;&#x73B0;&#x53BB;&#x9664;&#x6B7B;&#x4EE3;&#x7801;&#x529F;&#x80FD;&#xFF0C;&#x4F46;&#x662F; UglifyJS &#x53EF;&#x4EE5;&#x505A;&#x8FD9;&#x4E2A;&#x4E8B;&#x60C5;&#xFF0C;&#x5982;&#x4F55;&#x4F7F;&#x7528;&#x8BF7;&#x9605;&#x8BFB; <a href="4-8&#x538B;&#x7F29;&#x4EE3;&#x7801;.html">4-8 &#x538B;&#x7F29;&#x4EE3;&#x7801;</a> &#x4E2D;&#x7684;&#x538B;&#x7F29; JavaScript&#x3002;</p>
<h2 id="&#x7B2C;&#x4E09;&#x65B9;&#x5E93;&#x4E2D;&#x7684;&#x73AF;&#x5883;&#x533A;&#x5206;">&#x7B2C;&#x4E09;&#x65B9;&#x5E93;&#x4E2D;&#x7684;&#x73AF;&#x5883;&#x533A;&#x5206;</h2>
<p>&#x9664;&#x4E86;&#x5728;&#x81EA;&#x5DF1;&#x5199;&#x7684;&#x6E90;&#x7801;&#x4E2D;&#x53EF;&#x4EE5;&#x6709;&#x73AF;&#x5883;&#x533A;&#x5206;&#x7684;&#x4EE3;&#x7801;&#x5916;&#xFF0C;&#x5F88;&#x591A;&#x7B2C;&#x4E09;&#x65B9;&#x5E93;&#x4E5F;&#x505A;&#x4E86;&#x73AF;&#x5883;&#x533A;&#x5206;&#x7684;&#x4F18;&#x5316;&#x3002;
&#x4EE5; React &#x4E3A;&#x4F8B;&#xFF0C;&#x5B83;&#x505A;&#x4E86;&#x4E24;&#x5957;&#x73AF;&#x5883;&#x533A;&#x5206;&#xFF0C;&#x5206;&#x522B;&#x662F;&#xFF1A;</p>
<ol>
<li>&#x5F00;&#x53D1;&#x73AF;&#x5883;&#xFF1A;&#x5305;&#x542B;&#x7C7B;&#x578B;&#x68C0;&#x67E5;&#x3001;HTML &#x5143;&#x7D20;&#x68C0;&#x67E5;&#x7B49;&#x7B49;&#x9488;&#x5BF9;&#x5F00;&#x53D1;&#x8005;&#x7684;&#x8B66;&#x544A;&#x65E5;&#x5FD7;&#x4EE3;&#x7801;&#x3002;</li>
<li>&#x7EBF;&#x4E0A;&#x73AF;&#x5883;&#xFF1A;&#x53BB;&#x6389;&#x4E86;&#x6240;&#x6709;&#x9488;&#x5BF9;&#x5F00;&#x53D1;&#x8005;&#x7684;&#x4EE3;&#x7801;&#xFF0C;&#x53EA;&#x4FDD;&#x7559;&#x8BA9; React &#x80FD;&#x6B63;&#x5E38;&#x8FD0;&#x884C;&#x7684;&#x90E8;&#x5206;&#xFF0C;&#x4EE5;&#x4F18;&#x5316;&#x5927;&#x5C0F;&#x548C;&#x6027;&#x80FD;&#x3002;</li>
</ol>
<p>&#x4F8B;&#x5982; React &#x6E90;&#x7801;&#x4E2D;&#x6709;&#x5927;&#x91CF;&#x7C7B;&#x4F3C;&#x4E0B;&#x9762;&#x8FD9;&#x6837;&#x7684;&#x4EE3;&#x7801;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">if</span> (process.env.NODE_ENV !== <span class="hljs-string">&apos;production&apos;</span>) {
  warning(<span class="hljs-literal">false</span>, <span class="hljs-string">&apos;%s(...): Can only update a mounted or mounting component.... &apos;</span>)
}
</code></pre>
<p>&#x5982;&#x679C;&#x4F60;&#x4E0D;&#x5B9A;&#x4E49; <code>NODE_ENV=production</code> &#x90A3;&#x4E48;&#x8FD9;&#x4E9B;&#x8B66;&#x544A;&#x65E5;&#x5FD7;&#x5C31;&#x4F1A;&#x88AB;&#x5305;&#x542B;&#x5230;&#x8F93;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x4E2D;&#xFF0C;&#x8F93;&#x51FA;&#x7684;&#x6587;&#x4EF6;&#x5C06;&#x4F1A;&#x975E;&#x5E38;&#x5927;&#x3002;</p>
<p><code>process.env.NODE_ENV !== &apos;production&apos;</code> &#x4E2D;&#x7684; <code>NODE_ENV</code> &#x548C; <code>&apos;production&apos;</code> &#x4E24;&#x4E2A;&#x503C;&#x662F;&#x793E;&#x533A;&#x7684;&#x7EA6;&#x5B9A;&#xFF0C;&#x901A;&#x5E38;&#x4F7F;&#x7528;&#x8FD9;&#x6761;&#x5224;&#x65AD;&#x8BED;&#x53E5;&#x5728;&#x533A;&#x5206;&#x5F00;&#x53D1;&#x73AF;&#x5883;&#x548C;&#x7EBF;&#x4E0A;&#x73AF;&#x5883;&#x3002;</p>
<blockquote>
<p>&#x672C;&#x5B9E;&#x4F8B; <a href="http://webpack.wuhaolin.cn/4-7&#x533A;&#x5206;&#x73AF;&#x5883;.zip" target="_blank">&#x63D0;&#x4F9B;&#x9879;&#x76EE;&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a></p>
</blockquote>

                                
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