| # array-find-index [](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) |
