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schangxiang@126.com

2025-09-19 18966e02fb573c7e2bb0c6426ed792b38b910940

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# p-finally [![Build Status](https://travis-ci.org/sindresorhus/p-finally.svg?branch=master)](https://travis-ci.org/sindresorhus/p-finally)
 
> [`Promise#finally()`](https://github.com/tc39/proposal-promise-finally) [ponyfill](https://ponyfill.com) - Invoked when the promise is settled regardless of outcome
 
Useful for cleanup.
 
 
## Install
 
```
$ npm install --save p-finally
```
 
 
## Usage
 
```js
const pFinally = require('p-finally');
 
const dir = createTempDir();
 
pFinally(write(dir), () => cleanup(dir));
```
 
 
## API
 
### pFinally(promise, [onFinally])
 
Returns a `Promise`.
 
#### onFinally
 
Type: `Function`
 
Note: Throwing or returning a rejected promise will reject `promise` with the rejection reason.
 
 
## Related
 
- [p-try](https://github.com/sindresorhus/p-try) - `Promise#try()` ponyfill - Starts a promise chain
- [More…](https://github.com/sindresorhus/promise-fun)
 
 
## License
 
MIT © [Sindre Sorhus](https://sindresorhus.com)