91 lines
2.4 KiB
Markdown
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

[![Coveralls test coverage
](https://img.shields.io/coveralls/studio-b12/array-from.svg?style=flat-square
)](https://coveralls.io/r/studio-b12/array-from
)[![Travis build status
](https://img.shields.io/travis/studio-b12/array-from/master.svg?style=flat-square
)](https://travis-ci.org/studio-b12/array-from
)[![David status of dependencies
](https://img.shields.io/david/studio-b12/array-from.svg?style=flat-square
)](https://david-dm.org/studio-b12/array-from
)[![Code style: airbnb
](https://img.shields.io/badge/code%20style-airbnb-777777.svg?style=flat-square
)](https://github.com/airbnb/javascript)
array-from
==========
**A ponyfill for the ES 2015 [`Array.from()`][].**
*** Ponyfill**: A polyfill that doesn't overwrite the native method.
*** ES 2015**: The new name for ES6 that [nobody expected][].
Modeled after the final ES 2015 spec. Credits for the implementation go to the amazing folks of the MDN and the amazing guy [@barberboy](https://github.com/barberboy).
 
[`Array.from()`]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from "Array.from()"
[nobody expected]: http://webreflection.blogspot.de/2015/01/javascript-and-living-ecmascript.html "JavaScript and the living ECMAScript Standard"
Installation
------------
```sh
$ npm install array-from
```
Usage
-----
Recommended:
```js
var arrayFrom = require('array-from');
// Youll get the native `Array.from` if its available.
function () {console.log(
arrayFrom(arguments).map(require('1-liners/increment'))
);}(1, 2, 3);
//» [2, 3, 4]
```
You can also use it as a classical polyfill. Its [not recommended][], but sometimes practical:
```js
if (!Array.from) Array.from = require('array-from');
// This will affect all loaded modules.
function () {console.log(
Array.from(arguments).map(require('1-liners/increment'))
);}(1, 2, 3);
//» [2, 3, 4]
```
[not recommended]: https://github.com/sindresorhus/object-assign/issues/10#issuecomment-65065859 "Optionally shim native method?"
Support note
------------
We support the _current_ and _active LTS_ release of Node.js. More info in [nodejs/LTS](https://github.com/nodejs/LTS#lts_schedule).
License
-------
[MIT][] © [Studio B12 GmbH][]
[MIT]: ./License.md
[Studio B12 GmbH]: https://github.com/studio-b12