React.js app.js文件大小 [英] React.js app.js file size

问题描述

我创建了一个非常简单的react应用程序，其中包含7页和13个组件.我正在使用gulp进行编译，使用browserify进行依赖，将所有文件最小化.

I created pretty simple react application containing 7 pages and 13 components. I am using gulp to compile it, browserify for dependencies, all files are minimized.

我构建的 app.js 文件具有 1.1 MB .我认为它很大.

My build'ed app.js file has 1.1 MB. I think it is quite big.

我该怎么做才能减小其尺寸?是否有任何最佳实践来实现最小尺寸?

What can I do to reduce its size ? Are there any good practices to achieve smallest size ?

我没有依赖项的源代码是 91 KB .

My source code without dependencies is 91 KB.

推荐答案

使用webpack-uglify并禁用源映射可以将输出显着提高到合理的大小(对于Hello World应用程序约为140kbs)

Using webpack-uglify and disabling source maps can greatly improve the output to a reasonable size (~140kbs for a hello world application)

几个步骤:

在webpack配置中将 devtool 设置为 cheap-source-map 或 cheap-module-source-map ，这样就不会捆绑源映射输出:

Setting devtool in webpack config to cheap-source-map or cheap-module-source-map so the source maps are not bundled with the output:

{
  eval: 'cheap-source-map'
}

激活uglify插件或使用 -p 参数调用Webpack

Activate uglify plugin or call webpack with -p argument

plugins: [
  new webpack.optimize.UglifyJsPlugin({
    compress: {
      warnings: false
    }
  })
]

为生产定义节点环境会导致webpack删除测试助手并优化输出大小:

Defining node environment for production causes webpack to remove test helpers and optimize the ouput size:

plugins: [
  new webpack.DefinePlugin({
    'process.env': {
      'NODE_ENV': JSON.stringify('production')
    },
  })
]

注意:这些步骤应仅用于生产版本，因为它们会增加生成时间.

Note: these steps should be only used for production builds as they increase the build time.

资源:https://medium.com/modus-create-front-end-development/optimizing-webpack-production-build-for-react-es6-apps-a637e5692aea#.bug2p64de

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