https://github.com/sindresorhus/p-is-promise

Check if something is a promise
https://github.com/sindresorhus/p-is-promise

Last synced: about 1 month ago
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Check if something is a promise

• Host: GitHub
• URL: https://github.com/sindresorhus/p-is-promise
• Owner: sindresorhus
• License: mit
• Created: 2016-11-26T08:19:50.000Z (almost 8 years ago)
• Default Branch: main
• Last Pushed: 2021-04-16T07:02:44.000Z (over 3 years ago)
• Last Synced: 2024-05-19T14:01:06.326Z (6 months ago)
• Language: JavaScript
• Size: 12.7 KB
• Stars: 46
• Watchers: 6
• Forks: 9
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • Funding: .github/funding.yml
  • License: license
  • Security: .github/security.md

Awesome Lists containing this project

• promise-fun - p-is-promise

README

        
# p-is-promise

> Check if something is a promise

Why not [`is-promise`](https://github.com/then/is-promise)? That module [checks for a thenable](https://github.com/then/is-promise/issues/6), not an ES2015 promise. This one is stricter.

You most likely don't need this. Just pass your value to `Promise.resolve()` and let it handle it.

Can be useful if you need to create a fast path for a synchronous operation.

## Install

```

$ npm install p-is-promise

```

## Usage

```js

import isPromise from 'p-is-promise';

import Bluebird from 'bluebird';

isPromise(Promise.resolve('🦄'));

//=> true

isPromise(Bluebird.resolve('🦄'));

//=> true

isPromise('🦄');

//=> false

```

## Related

- [is](https://github.com/sindresorhus/is) - Type check values

- [More…](https://github.com/sindresorhus/promise-fun)

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