npm package: @ryniaubenpm/maiores-quos-deserunt
Description: [![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url]
Author: ryniaube
Latest version: 1.0.0

# @ryniaubenpm/maiores-quos-deserunt <sup>[![Version Badge][npm-version-svg]][package-url]</sup>

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[![License][license-image]][license-url]
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[![npm badge][npm-badge-png]][package-url]

An ESnext spec-compliant `Object.groupBy` 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-array-grouping/).

## Getting started

```sh
npm install --save @ryniaubenpm/maiores-quos-deserunt
```

## Usage/Examples

```js
var groupBy = require('@ryniaubenpm/maiores-quos-deserunt');
var assert = require('assert');

var arr = [0, 1, 2, 3, 4, 5];
var parity = function (x) { return x % 2 === 0 ? 'even' : 'odd'; };

var results = groupBy(arr, function (x, i) {
    assert.equal(x, arr[i]);
    return parity(x);
});

assert.deepEqual(results, {
    __proto__: null,
    even: [0, 2, 4],
    odd: [1, 3, 5],
});
```

```js
var groupBy = require('@ryniaubenpm/maiores-quos-deserunt');
var assert = require('assert');
/* when Object.groupBy is not present */
delete Object.groupBy;
var shimmed = groupBy.shim();

assert.equal(shimmed, groupBy.getPolyfill());
assert.deepEqual(Object.groupBy(arr, parity), groupBy(arr, parity));
```

```js
var groupBy = require('@ryniaubenpm/maiores-quos-deserunt');
var assert = require('assert');
/* when Array#group is present */
var shimmed = groupBy.shim();

assert.equal(shimmed, Object.groupBy);
assert.deepEqual(Object.groupBy(arr, parity), groupBy(arr, parity));
```

## Tests
Simply clone the repo, `npm install`, and run `npm test`

[package-url]: https://npmjs.org/package/@ryniaubenpm/maiores-quos-deserunt
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[npm-badge-png]: https://nodei.co/npm/@ryniaubenpm/maiores-quos-deserunt.png?downloads=true&stars=true
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[license-url]: LICENSE
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