webpack基础开发环境配置

package.json中需要引入的基础依赖

//基础类
    "webpack": "^4.41.6",
    "webpack-cli": "^3.3.12",
    "terser-webpack-plugin": "^2.3.5",
    "thread-loader": "^2.1.3",
    "webpack-dev-server": "^3.10.3",
    "workBox-webpack-plugin": "^5.0.0"
    "add-asset-html-webpack-plugin": "^3.1.3",
//js
    "@babel/core": "^7.8.4",
    "@babel/polyfill": "^7.8.3",
    "@babel/preset-env": "^7.8.4",
    "babel": "^6.23.0",
    "babel-loader": "^8.0.6",
    "core-js": "^3.6.4",
    "eslint": "^6.8.0",
    "eslint-config-airbnb-base": "^14.0.0",
    "eslint-loader": "^3.0.3",
    "eslint-plugin-import": "^2.20.1",
//html&css&img&other
    "html-webpack-plugin": "^3.2.0",
    "html-loader": "^0.5.5",
    "style-loader": "^1.1.3",
    "css-loader": "^3.4.2",
    "url-loader": "^3.0.0",
    "file-loader": "^5.0.2",
    "mini-css-extract-plugin": "^0.9.0",
    "optimize-css-assets-webpack-plugin": "^5.0.3",
    "postcss-loader": "^3.0.0",
    "postcss-preset-env": "^6.7.0",
//less
    "less": "^3.13.1",
    "less-loader": "^5.0.0",

基础配置代码webpack.config.js

/*
  开发环境配置：能让代码运行
    运行项目指令：
      webpack 会将打包结果输出出去
      npx webpack-dev-server 只会在内存中编译打包，没有输出
*/

const { resolve } = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  entry: './src/js/index.js',
  output: {
    filename: 'js/built.js',
    path: resolve(__dirname, 'build')
  },
  module: {
    rules: [
      // loader的配置
      {
        // 处理less资源
        test: /\.less$/,
        use: ['style-loader', 'css-loader', 'less-loader']
      },
      {
        // 处理css资源
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      },
      {
        // 处理图片资源
        test: /\.(jpg|png|gif)$/,
        loader: 'url-loader',
        options: {
          limit: 8 * 1024,
          name: '[hash:10].[ext]',
          // 关闭es6模块化
          esModule: false,
          outputPath: 'imgs'
        }
      },
      {
        // 处理html中img资源
        test: /\.html$/,
        loader: 'html-loader'
      },
      {
        // 处理其他资源
        exclude: /\.(html|js|css|less|jpg|png|gif)/,
        loader: 'file-loader',
        options: {
          name: '[hash:10].[ext]',
          outputPath: 'media'
        }
      }
    ]
  },
  plugins: [
    // plugins的配置
    new HtmlWebpackPlugin({
      template: './src/index.html'
    })
  ],
  mode: 'development',
  devServer: {
    contentBase: resolve(__dirname, 'build'),
    compress: true,
    port: 3000,
    open: true
  }
};