jupyterlab/packages/services/examples/browser/package.json

{
  "name": "browser-example",
  "version": "0.15.1",
  "private": true,
  "scripts": {
    "build": "tsc && webpack",
    "clean": "rimraf build",
    "prepublishOnly": "npm run build"
  },
  "dependencies": {
    "@jupyterlab/services": "^3.2.1",
    "es6-promise": "~4.1.1"
  },
  "devDependencies": {
    "rimraf": "~2.6.2",
    "webpack": "~4.12.0",
    "webpack-cli": "^3.0.3"
  }
}