is-npm

Check if your code is running as an npm or yarn script

Install

$ npm install is-npm

Usage

const {isNpmOrYarn, isNpm, isYarn} = require('is-npm');

console.table({isNpmOrYarn, isNpm, isYarn});

$ node foo.js
# ┌─────────────┬────────┐
# │   (index)   │ Values │
# ├─────────────┼────────┤
# │ isNpmOrYarn │ false  │
# │    isNpm    │ false  │
# │   isYarn    │ false  │
# └─────────────┴────────┘
$ npm run foo
# ┌─────────────┬────────┐
# │   (index)   │ Values │
# ├─────────────┼────────┤
# │ isNpmOrYarn │  true  │
# │    isNpm    │  true  │
# │   isYarn    │ false  │
# └─────────────┴────────┘
$ yarn run foo
# ┌─────────────┬────────┐
# │   (index)   │ Values │
# ├─────────────┼────────┤
# │ isNpmOrYarn │  true  │
# │    isNpm    │ false  │
# │   isYarn    │  true  │
# └─────────────┴────────┘

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