https://github.com/cityssm/node-has-package

Tests if a package is available to be imported. Useful for checking if optional dependencies are installed.
https://github.com/cityssm/node-has-package

dependencies dependency import optional-dependencies require

Last synced: 7 months ago
JSON representation

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

• Host: GitHub
• URL: https://github.com/cityssm/node-has-package
• Owner: cityssm
• License: mit
• Created: 2024-11-21T14:53:28.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2025-09-29T13:36:25.000Z (8 months ago)
• Last Synced: 2025-10-03T03:26:05.119Z (8 months ago)
• Topics: dependencies, dependency, import, optional-dependencies, require
• Language: JavaScript
• Homepage: https://www.npmjs.com/package/@cityssm/has-package
• Size: 184 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE.md
  • Code of conduct: CODE_OF_CONDUCT.md
  • Security: SECURITY.md

Awesome Lists containing this project

README

          
# Has Package

[![NPM Version](https://img.shields.io/npm/v/%40cityssm%2Fhas-package)](https://www.npmjs.com/package/@cityssm/has-package)

[![DeepSource](https://app.deepsource.com/gh/cityssm/node-has-package.svg/?label=active+issues&show_trend=true&token=DR3479iXPgrcY5n3e5515lA-)](https://app.deepsource.com/gh/cityssm/node-has-package/)

[![codecov](https://codecov.io/gh/cityssm/node-has-package/graph/badge.svg?token=YG1D26SPQF)](https://codecov.io/gh/cityssm/node-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

```