Has Package


Tests if a package is available to be imported. Useful for checking if optional dependencies are installed.

Unlike other packages that test whether a package is available by importing it,
this package checks the file system for the corresponding package.json file.
This avoids any package code from running during the check.

Installation

``sh
npm install @cityssm/has-package
`

Usage

`javascript
import hasPackage from '@cityssm/has-package'

/*
* Test for an existing package
*/

let packageExists = await hasPackage('eslint')
console.log(packageExists)
// => true

/*
* Test for an nonexisting package
*/

packageExists = await hasPackage('@cityssm/non-existing-package')
console.log(packageExists)
// => false
``