web250825/webpack/demo/webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
module.exports = {
    mode: 'production',
    entry: './src/b.js',
    // entry: ['./src/a.js', './src/b.js'],
    // entry: {
    //     hi:'./src/b.js',
    //     ha:'./src/a.js'
    // }
    output: {
        // clean: true, // 清楚打包文件中的其他文件
        filename:'[name]-[id]-[hash].js', //输出文件名字
        // path:path.resolve(__dirname,'news') // 打包文件夹输出
    },
    module: {
        rules: [
            {
                test: /\.css$/i,
                use: ['style-loader', 'css-loader'],
            },
            {
                test: /\.(png|svg|jpg|jpeg|gif)$/i,
                type: 'asset/resource',
            },
            {
                test: /\.m?js$/,
                exclude: /(node_modules|bower_components)/,
                use: {
                    loader: 'babel-loader',
                    options: {
                        presets: ['@babel/preset-env'],
                    },
                },
            },
        ],
    },
   plugins: [new HtmlWebpackPlugin({ template: './src/index.html' })],
   devtool: 'inline-source-map'
}