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array.prototype.flatmap

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Comparing version 1.0.0 to 1.0.1

4

CHANGELOG.md

@@ -0,3 +1,7 @@

1.0.1 / 2017-10-02
=================
* Add readme
1.0.0 / 2017-10-01
=================
* Initial release

2

package.json
{
"name": "array.prototype.flatmap",
"version": "1.0.0",
"version": "1.0.1",
"author": {

@@ -5,0 +5,0 @@ "name": "Jordan Harband",

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# Array.prototype.flatMap
ESnext spec-compliant shim for Array.prototype.flatMap
# array.prototype.flatmap <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
[![Build Status][travis-svg]][travis-url]
[![dependency status][deps-svg]][deps-url]
[![dev dependency status][dev-deps-svg]][dev-deps-url]
[![License][license-image]][license-url]
[![Downloads][downloads-image]][downloads-url]
[![npm badge][npm-badge-png]][package-url]
An ESnext spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
This package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES3-supported environment and complies with the proposed [spec](https://tc39.github.io/proposal-flatMap/).
Because `Array.prototype.flatMap` depends on a receiver (the `this` value), the main export takes the array to operate on as the first argument.
## Getting started
```sh
npm install --save array.prototype.flatmap
```
## Usage/Examples
```js
var flatMap = require('array.prototype.flatmap');
var assert = require('assert');
var arr = [1, [2], [], 3];
var results = flatMap(arr, function (x, i) {
assert.equal(x, arr[i]);
return x;
});
assert.deepEqual(results, [1, 2, 3]);
```
```js
var flatMap = require('array.prototype.flatmap');
var assert = require('assert');
/* when Array#flatMap is not present */
delete Array.prototype.flatMap;
var shimmedFlatMap = flatMap.shim();
var mapper = function (x) { return [x, 1]; };
assert.equal(shimmedFlatMap, flatMap.getPolyfill());
assert.deepEqual(arr.flatMap(mapper), flatMap(arr, mapper));
```
```js
var flatMap = require('array.prototype.flatmap');
var assert = require('assert');
/* when Array#flatMap is present */
var shimmedIncludes = flatMap.shim();
var mapper = function (x) { return [x, 1]; };
assert.equal(shimmedIncludes, Array.prototype.flatMap);
assert.deepEqual(arr.flatMap(mapper), flatMap(arr, mapper));
```
## Tests
Simply clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.org/package/array.prototype.flatmap
[npm-version-svg]: http://versionbadg.es/es-shims/Array.prototype.flatMap.svg
[travis-svg]: https://travis-ci.org/es-shims/Array.prototype.flatMap.svg
[travis-url]: https://travis-ci.org/es-shims/Array.prototype.flatMap
[deps-svg]: https://david-dm.org/es-shims/Array.prototype.flatMap.svg
[deps-url]: https://david-dm.org/es-shims/Array.prototype.flatMap
[dev-deps-svg]: https://david-dm.org/es-shims/Array.prototype.flatMap/dev-status.svg
[dev-deps-url]: https://david-dm.org/es-shims/Array.prototype.flatMap#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/array.prototype.flatmap.png?downloads=true&stars=true
[license-image]: http://img.shields.io/npm/l/array.prototype.flatmap.svg
[license-url]: LICENSE
[downloads-image]: http://img.shields.io/npm/dm/array.prototype.flatmap.svg
[downloads-url]: http://npm-stat.com/charts.html?package=array.prototype.flatmap
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