extract-text-webpack-plugin用法详解

# for webpack 3 
npm install --save-dev extract-text-webpack-plugin
# for webpack 2 
npm install --save-dev extract-text-webpack-plugin@2.1.2
# for webpack 1 
npm install --save-dev extract-text-webpack-plugin@1.0.1

const ExtractTextPlugin = require("extract-text-webpack-plugin");

module.exports = {
 module: {
 rules: [
  {
  test: /\.css$/,
  use: ExtractTextPlugin.extract({
   fallback: "style-loader", // 编译后用什么loader来提取css文件
   use: "css-loader" // 指需要什么样的loader去编译文件,这里由于源文件是.css所以选择css-loader
  })
  }
 ]
 },
 plugins: [
 new ExtractTextPlugin("styles.css"),
 ]
}

const ExtractTextPlugin = require('extract-text-webpack-plugin');

// Create multiple instances
const extractCSS = new ExtractTextPlugin('stylesheets/[name]-one.css');
const extractLESS = new ExtractTextPlugin('stylesheets/[name]-two.css');

module.exports = {
 module: {
 rules: [
  {
  test: /\.css$/,
  use: extractCSS.extract([ 'css-loader', 'postcss-loader' ])
  },
  {
  test: /\.less$/i,
  use: extractLESS.extract([ 'css-loader', 'less-loader' ])
  },
 ]
 },
 plugins: [
 extractCSS,
 extractLESS
 ]
};

const ExtractTextPlugin = require('extract-text-webpack-plugin');

module.exports = {
 module: {
 rules: [
  {
  test: /\.scss$/,
  use: ExtractTextPlugin.extract({
   fallback: 'style-loader',
   use: ['css-loader', 'sass-loader']
  })
  }
 ]
 },
 plugins: [
 new ExtractTextPlugin('style.css')
 //if you want to pass in options, you can do so:
 //new ExtractTextPlugin({
 // filename: 'style.css'
 //})
 ]
}

const ExtractTextPlugin = require('extract-text-webpack-plugin');

module.exports = {
 module: {
 rules: [
  {
  test: /\.scss$/,
  use: ExtractTextPlugin.extract({
   fallback: 'style-loader',
   use: [
   {
    loader: 'css-loader',
    options: {
     // If you are having trouble with urls not resolving add this setting.
     // See https://github.com/webpack-contrib/css-loader#url
     url: false,
     minimize: true,
     sourceMap: true
    }
   }, 
   {
    loader: 'sass-loader',
    options: {
     sourceMap: true
    }
   }
   ]
  })
  }
 ]
 }
}

entry: {
 'js/a': "./a"
},
plugins: [
 new ExtractTextPlugin({
 filename: (getPath) => {
  return getPath('css/[name].css').replace('css/js', 'css');
 },
 allChunks: true
 })
]