is-npm-not-yarn

Detect if code is running as an npm script but not a yarn script.

Usage no npm install needed!

<script type="module">
  import isNpmNotYarn from 'https://cdn.skypack.dev/is-npm-not-yarn';
</script>

Detect if code is running as an npm script but not a yarn script.

Note: Use with >= yarn@1 requires >= is-npm-not-yarn@2.

var isNpmNotYarn = require('is-npm-not-yarn')
console.log(isNpmNotYarn) // true or false

is-npm-not-yarn

exit code of 0 if is npm and not yarn, else 1