mkdir package

cd package

npm init -y

npm i eslint

eslint --init

npm install @commitlint/cli @commitlint/config-conventional husky --save-dev

module.exports = {
  extends: ['@commitlint/config-conventional']
}

// package.json

"husky": {
  "hooks": {
    "pre-commit": "eslint src --fix --ext .js",
    "commit-msg": "commitlint -e"
  }
}

npm install webpack webpack-cli --save-dev
npm install @babel/core @babel/preset-env babel-loader @babel/plugin-transform-runtime @babel/runtime-corejs3 --save-dev

const path = require('path');

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

{
  "presets": [
    ["@babel/preset-env"]
  ],
  "plugins": [
    [
      "@babel/plugin-transform-runtime", {
      "corejs": 3
    }
    ]
  ]
}

npm login

npm publish