生产模式（mode: ‘production’）下，会默认压缩js

    • 项目目录

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    • 配置文件 ```javascript const { resolve } = require(‘path’); const HtmlWebpackPlugin = require(‘html-webpack-plugin’);

    module.exports = { entry: ‘./src/js/index.js’, output: { filename: ‘js/built.js’, path: resolve(__dirname, ‘build’) }, plugins: [ new HtmlWebpackPlugin({ template: ‘./src/index.html’ }) ], // 生产环境下会自动压缩js代码 mode: ‘production’ }; ```

    • 运行命令：webpack