webpack.base.config.js

const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');//html插件，需要安装依赖项 npm install htmp-webpack-plugin --save-dev
const MiniCssExtractPlugin = require("mini-css-extract-plugin");//压缩css文件
module.exports = {
    entry: {
        main: path.join(__dirname, "./app/main.js"), //入口文件
        common: ['react', 'react-dom']
    },
    output: {
        path: path.join(__dirname, "./build"),//出口文件
        filename: "[name].js",
    },
    resolve: {
        extensions: ['.js', '.jsx', 'json', '.css'], //需要编译的文件类型
    },
    performance: {
        hints: false
    },
    module: {
        rules: [
            {
                test: /\.(js|jsx)?$/,
                exclude: /(node_modules)/,
                loader: 'babel-loader' ,    //jsx js转码配置
            },
            {
                test: /\.css$/,
                use: [MiniCssExtractPlugin.loader, 'css-loader'], //css转码，需要安装依赖项css-loader

            },
            {
                test: /\.less$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    {
                        loader: "css-loader" // translates CSS into CommonJS
                    }, {
                        loader: "less-loader", // compiles Sass to CSS
                        options:{javascriptEnabled:true}
                    }]
            },
            //{
            //    test: /\.html$/,
            //    use: [{loader: 'html-loader', options: {minimize: true}}]},
            //{
            //    test: /\.(ico)$/,
            //    use: "raw-loader", //加载ico文件
            //},
            //{
            //    test:/\.(svg|png)$/, use:'file-loader', //加载文件
            //}
        ]
    },
    plugins:[
        new HtmlWebpackPlugin({ filename: "index.html", template: path.join(__dirname, "./public/index.html") }),
        new MiniCssExtractPlugin({ filename: "[name].css", chunkFilename: "[id].css" })
    ]
}