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- # p-finally [](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)
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