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webpack进阶之loader篇_html/css_WEB-ITnose

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2016-06-24 11:15:131434browse

webpack的loaders是一大特色,也是很重要的一部分。这遍博客我将分类讲解一些常用的laoder

一、loaders之 预处理

  • css-loader 处理css中路径引用等问题

  • style-loader 动态把样式写入css

  • sass-loader scss编译器

  • less-loader less编译器

  • postcss-loader scss再处理

npm install --save -dev css-loader style-loader sass-loader less-loader postcss-loader

栗子:

module: {  loaders: [    {test: //.css$/, loader: "style!css?sourceMap!postcss"},    {test: //.less$/, loader: "style!css!less|postcss"},    {test: //.scss$/, loader: "style!css!sass|postcss"}  ]}

二、loaders之 js处理

  • babel-loader

  • jsx-loader

npm install --save-dev babel-core babel-preset-es2015 babel-loader jsx-loader

栗子

新建一个名字为 .babelrc 的文件

{  "presets": ["es2015","react"],  "plugins":["antd"]}

新建一个名字为 webpack.config.js 文件

module.exports ={ entry: './entry.js', output: { path: __dirname, filename: 'bundle.js' }, module: {loaders: [  {test: //.js$/, loader: "babel", exclude: /node_modules/},  {test: //.jsx$/, loader: "jsx-loader"}  {test: /.css$/, loader: 'style!css'} ]  }};

三、loaders之 图片处理

  • url-loader

npm install --save-dev url-loadr

module: {  loaders: [    {test: //.(jpg|png)$/, loader: "url?limit=8192"},  ]}

四、loaders之 文件处理

  • file-loader

npm install --save-dev file-loader

module: {  loaders: [    {      test: //.(png|jpg|jpeg|gif|svg|woff|woff2|ttf|eot)$/,      loader: 'file'      },  ]}

五、loaders之 json处理

  • json-loader

npm install --save-dev json-loader

module: {  loaders: [    {test: //.json$/,loader: 'json'},  ]}

六、loaders之 html处理

  • raw-loader

npm install --save-dev raw-loader

module: {  loaders: [    { test: //.html$/,loader: 'raw'},  ]}
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