esm-dual-mode-package.json

{
  "name": "dual-cjs-mjs-package",
  "version": "1.0.0",
  "description": "A package that can be both imported as esm and as cjs",
  "main": "entry",
  "scripts": {
    "build": "babel *.mjs **/*.mjs --out-dir ."
  },
  "devDependencies": {
    "babel-cli": "^6.26.0",
    "babel-eslint": "^8.0.1",
    "babel-plugin-transform-es2015-modules-commonjs": "^6.26.0",
    "babel-plugin-dynamic-import-node": "^1.1.0"
  },
  "keywords": [],
  "author": "",
  "license": "ISC"
}