webpack.prod.js

const path = require("path");
const common = require("./webpack.common");
const merge = require("webpack-merge");
const cleanWebpackPlugin = require('clean-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const OptimizeCssAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const TerserPlugin = require("terser-webpack-plugin");
const HtmlWebpackPlugin = require('html-webpack-plugin');


module.exports = merge(common, {
    mode: "production",
    output: {
        filename: "[name].[contentHash].bundle.js",
        path: path.resolve(__dirname, "dist")
    },
    plugins: [ 
        new MiniCssExtractPlugin({ filename: "[name].[contentHash].css"}), 
        new cleanWebpackPlugin()
    ],
    module: {
        rules: [{
            test: /\.scss$/,
            use: [
                MiniCssExtractPlugin.loader, // 3. 提取css into file
                "css-loader", // 2. second run this
                "sass-loader" // 1. run first
            ],
        }]
    },
    optimization: {
        minimizer: [
            new OptimizeCssAssetsPlugin(),
            new TerserPlugin(),
            new HtmlWebpackPlugin({
                template: "./src/index.html",
                minify: {
                    removeAttributeQuotes: true,
                    collapseWhitespace: true,
                    removeComments: true
                }
            })
    ]},
});