W250511/20.webpack/webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
module.exports = {
    mode: 'production',
    // 配置打包入口
    // entry:'./src/hello.js',
    // entry: {
    //     a:'./src/hello.js',
    //     b:'./src/index.js'
    // },
    output: {
        // filename:'[name]-[id]-[hash].js'
        clean: true,
        path: path.resolve(__dirname, 'dist')
    },
    module: {
        rules: [
            {
                test: /\.css$/i,
                use: ['style-loader', 'css-loader'],
            },

            {
                // png|svg|jpg|jpeg|gif 区别
                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: './index.html'
        })
    ],
    // 映射源码
    devtool: "inline-source-map"
}