webpack 开发环境配置

webpack.config.js

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

module.exports = {
  entry: ‘./src/js/index.js‘,
  output: {
    filename: ‘js/bundle.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)$/,
        loader: ‘url-loader‘,
        options: {
          limit: 8 * 1024,
          name: ‘[hash:10].[ext]‘,
          outputPath: ‘imgs‘
        }
      },
      {
        // 处理html中img资源
        test: /\.html$/,
        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
  }
};

运行指令:

npx webpack : 会将打包结果输出出去

webpack 开发环境配置

npx webpack-dev-server 只会在内存中编译打包,没有输出

webpack 开发环境配置

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