45 lines
989 B
Markdown
45 lines
989 B
Markdown
|
# array-find
|
||
|
|
||
|
[![Build Status](https://travis-ci.org/stefanduberg/array-find.svg?branch=master)](https://travis-ci.org/stefanduberg/array-find)
|
||
|
|
||
|
**ES 2015 `Array.find` ponyfill.**
|
||
|
|
||
|
**Ponyfill: A polyfill that doesn't overwrite the native method.**
|
||
|
|
||
|
Find array elements. Executes a callback for each element, returns the first element for which its callback returns a truthy value.
|
||
|
|
||
|
## Usage
|
||
|
|
||
|
```javascript
|
||
|
var find = require('array-find');
|
||
|
var numbers = [1, 2, 3, 4];
|
||
|
|
||
|
find(numbers, function (element, index, array) {
|
||
|
return element === 2;
|
||
|
});
|
||
|
// => 2
|
||
|
|
||
|
var robots = [{name: 'Flexo'}, {name: 'Bender'}, {name: 'Buster'}];
|
||
|
|
||
|
find(robots, function (robot, index, array) {
|
||
|
return robot.name === 'Bender';
|
||
|
});
|
||
|
// => {name: 'Bender'}
|
||
|
|
||
|
find(robots, function (robot, index, array) {
|
||
|
return robot.name === 'Fry';
|
||
|
});
|
||
|
// => undefined
|
||
|
```
|
||
|
|
||
|
Optionally pass in an object as third argument to use as `this` when executing callback.
|
||
|
|
||
|
## Install
|
||
|
|
||
|
```bash
|
||
|
$ npm install array-find
|
||
|
```
|
||
|
|
||
|
## License
|
||
|
MIT
|