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# array-find-index [![Build Status](https://travis-ci.org/sindresorhus/array-find-index.svg?branch=master)](https://travis-ci.org/sindresorhus/array-find-index) | |
> ES2015 [`Array#findIndex()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/findIndex) [ponyfill](https://ponyfill.com) | |
## Install | |
``` | |
$ npm install --save array-find-index | |
``` | |
## Usage | |
```js | |
const arrayFindIndex = require('array-find-index'); | |
arrayFindIndex(['rainbow', 'unicorn', 'pony'], x => x === 'unicorn'); | |
//=> 1 | |
``` | |
## API | |
Same as `Array#findIndex()`, but with the input array as the first argument. | |
## License | |
MIT © [Sindre Sorhus](https://sindresorhus.com) | |