1. When there's yarn.lock, package-lock.json, or pnpm-lock.yaml in current working directory, it will skip other operations and directly resolve yarn, npm, or pnpm.
2. When there's no lockfile found, it checks if yarn and pnpm command exists. If so, it resolves yarn or pnpm otherwise npm.
3. Results are cached.

yarn add detect-package-manager

const { detect } = require('detect-package-manager')

detect()
  .then(pm => {
    console.log(pm)
    //=> 'yarn', 'npm', or 'pnpm'
  })

• Arguments:
  • opts.cwd: string Optional, defaults to ., the directory to look up yarn.lock, package-lock.json, or pnpm-lock.yaml.
• Returns: Promise<PM>

It returns a Promise resolving the name of package manager, could be npm, yarn, or pnpm.

• Arguments:
  • pm: string Optional, defaults to npm, could be npm, yarn, or pnpm
• Returns: Promise<string>

It returns a Promise resolving the version of npm or the package manager you specified.

• Returns: void

Clear cache.

1. Fork it!
2. Create your feature branch: git checkout -b my-new-feature
3. Commit your changes: git commit -am 'Add some feature'
4. Push to the branch: git push origin my-new-feature
5. Submit a pull request :D

detect-package-manager © EGOIST, Released under the MIT License.
Authored and maintained by EGOIST with help from contributors (list).

github.com/egoist · GitHub @EGOIST · Twitter @_egoistlily