node.js 打包lib

// webpack.config.js
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
  plugins: [
    new BundleAnalyzerPlugin()
  ],
  externals: {
    'react': 'React',
    'react-dom': 'ReactDOM'
  },
  optimization: {
    splitChunks: {
      chunks: 'all'
    }
  }
};

npm install --save lodash

// 正确导入lodash
const _ = require('lodash');

npm install eslint --save-dev
npx eslint .

my-lib/
├── src/
│   └── index.js
├── package.json
└── webpack.config.js

export function greet(name) {
  return `Hello, ${name}!`;
}

const path = require('path');

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'my-lib.js',
    libraryTarget: 'umd',
    globalObject: 'this'
  },
  mode: 'production'
};

{
  "name": "my-lib",
  "version": "1.0.0",
  "main": "dist/my-lib.js",
  "scripts": {
    "build": "webpack"
  },
  "devDependencies": {
    "webpack": "^5.0.0",
    "webpack-cli": "^4.0.0"
  }
}

npm run build