webpack打包CSS详细流程解析

1
import './index.css'

1
npm install --save-dev webpack-cli@3.3.12 webpack@4.44.1

1
npm install --save-dev html-webpack-plugin@4.3.0

1
npm install --save-dev css-loader@4.1.1

1
npm install --save-dev style-loader@1.2.1

1
npm install --save-dev mini-css-extract-plugin@0.9.0

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
{
  "name": "webpack-css",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "webpack": "webpack"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "css-loader": "^4.1.1",
    "html-webpack-plugin": "^4.3.0",
    "mini-css-extract-plugin": "^0.9.0",
    "style-loader": "^1.2.1",
    "webpack": "^4.44.1",
    "webpack-cli": "^3.3.12"
  }
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
const HtmlWebpackPlugin = require('html-webpack-plugin');
 plugins: [
    // 自动将依赖注入 html 模板，并输出最终的 html 文件到目标文件夹
    new HtmlWebpackPlugin({
      //在dist文件下成为打包生成的文件
      filename: 'index.html',
      //源文件，一起作为模板
      template: './src/index.art',
      //要引入的文件，在entry里面的js文件的名称
      chunks: ['index']
    }),
    new HtmlWebpackPlugin({
      filename: 'list.html',
      template: './src/list.art',
      chunks: ['list']
    })
  ]

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
//css用link的方式引入
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = {
  mode: 'development',
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].js'
  },
  module: {
    rules: [
      {
        test: /.css$/,
        // loader: 'css-loader'
        // use: ['style-loader', 'css-loader']
        use: [MiniCssExtractPlugin.loader, 'css-loader']
      }
    ]
  },
  plugins: [ 
    new HtmlWebpackPlugin({
      template: './index.html',
      filename: 'index.html'
    }),
    new MiniCssExtractPlugin({
      filename: 'css/[name].css'
    })
  ]
};

1
npm run webpeck