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| 1 | # p-finally [](https://travis-ci.org/sindresorhus/p-finally)
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| 2 |
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| 3 | > [`Promise#finally()`](https://github.com/tc39/proposal-promise-finally) [ponyfill](https://ponyfill.com) - Invoked when the promise is settled regardless of outcome
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| 4 |
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| 5 | Useful for cleanup.
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| 6 |
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| 7 |
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| 8 | ## Install
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| 9 |
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| 10 | ```
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| 11 | $ npm install --save p-finally
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| 12 | ```
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| 13 |
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| 14 |
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| 15 | ## Usage
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| 16 |
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| 17 | ```js
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| 18 | const pFinally = require('p-finally');
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| 19 |
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| 20 | const dir = createTempDir();
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| 21 |
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| 22 | pFinally(write(dir), () => cleanup(dir));
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| 23 | ```
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| 24 |
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| 25 |
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| 26 | ## API
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| 27 |
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| 28 | ### pFinally(promise, [onFinally])
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| 29 |
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| 30 | Returns a `Promise`.
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| 31 |
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| 32 | #### onFinally
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| 33 |
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| 34 | Type: `Function`
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| 35 |
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| 36 | Note: Throwing or returning a rejected promise will reject `promise` with the rejection reason.
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| 37 |
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| 38 |
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| 39 | ## Related
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| 40 |
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| 41 | - [p-try](https://github.com/sindresorhus/p-try) - `Promise#try()` ponyfill - Starts a promise chain
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| 42 | - [More…](https://github.com/sindresorhus/promise-fun)
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| 43 |
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| 44 |
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| 45 | ## License
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| 46 |
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| 47 | MIT © [Sindre Sorhus](https://sindresorhus.com)
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