Better alternativeUse process.env.npm_config_user_agent?.startsWith("npm") — Consider using a lighter alternative
is-npm
Check if your code is running as an npm, yarn, pnpm, or bun script
Install
npm install is-npmUsage
import {isPackageManager, isNpm, isYarn, isPnpm, isBun} from 'is-npm';
console.table({isPackageManager, isNpm, isYarn, isPnpm, isBun});$ node foo.js
# ┌──────────────────┬────────┐
# │ (index) │ Values │
# ├──────────────────┼────────┤
# │ isPackageManager │ false │
# │ isNpm │ false │
# │ isYarn │ false │
# │ isPnpm │ false │
# │ isBun │ false │
# └──────────────────┴────────┘
$ npm run foo
# ┌──────────────────┬────────┐
# │ (index) │ Values │
# ├──────────────────┼────────┤
# │ isPackageManager │ true │
# │ isNpm │ true │
# │ isYarn │ false │
# │ isPnpm │ false │
# │ isBun │ false │
# └──────────────────┴────────┘
$ yarn run foo
# ┌──────────────────┬────────┐
# │ (index) │ Values │
# ├──────────────────┼────────┤
# │ isPackageManager │ true │
# │ isNpm │ false │
# │ isYarn │ true │
# │ isPnpm │ false │
# │ isBun │ false │
# └──────────────────┴────────┘
$ pnpm run foo
# ┌──────────────────┬────────┐
# │ (index) │ Values │
# ├──────────────────┼────────┤
# │ isPackageManager │ true │
# │ isNpm │ false │
# │ isYarn │ false │
# │ isPnpm │ true │
# │ isBun │ false │
# └──────────────────┴────────┘
$ bun run foo
# ┌──────────────────┬────────┐
# │ (index) │ Values │
# ├──────────────────┼────────┤
# │ isPackageManager │ true │
# │ isNpm │ false │
# │ isYarn │ false │
# │ isPnpm │ false │
# │ isBun │ true │
# └──────────────────┴────────┘API
isNpm
Check if your code is running as an npm script.
isYarn
Check if your code is running as a yarn script.
isPnpm
Check if your code is running as a pnpm script.
isBun
Check if your code is running as a bun script.
isPackageManager
Check if your code is running as a package manager script (npm, yarn, pnpm, or bun).
isNpmOrYarn (deprecated)
Check if your code is running as an npm or yarn script.
Use isPackageManager instead for detecting any package manager.
Related
- is-npm-cli - CLI for this module