node.js 怎么打包

# 初始化项目
npm init -y

# 安装依赖项
npm install express

# 创建入口文件 index.js
echo "const express = require('express'); const app = express(); app.get('/', (req, res) => res.send('Hello World')); app.listen(3000);" > index.js

# 打包
npm pack

# 安装 webpack 及其 CLI
npm install --save-dev webpack webpack-cli

# 创建 webpack 配置文件 webpack.config.js
echo "const path = require('path'); module.exports = { entry: './index.js', output: { filename: 'bundle.js', path: path.resolve(__dirname, 'dist') } };" > webpack.config.js

# 打包
npx webpack

# 使用 gzip 压缩
gzip -k dist/bundle.js

const path = require('path');
module.exports = {
  entry: path.resolve(__dirname, 'index.js'),
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist')
  }
};

const path = require('path');

module.exports = {
  entry: './src/index.js',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist')
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader'
        }
      }
    ]
  }
};