praesentium-harum-corrupti
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MIT License
Ecosystems:
GraphQL
@hoangcung1804npm/praesentium-harum-corrupti 
An ESnext spec-compliant Map.groupBy shim/polyfill/replacement that works as far down as ES3.
This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.
Getting started
npm install --save @hoangcung1804npm/praesentium-harum-corrupti
Usage/Examples
var groupBy = require('@hoangcung1804npm/praesentium-harum-corrupti');
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, new Map([
['even', [0, 2, 4]],
['odd', [1, 3, 5]],
]));
var groupBy = require('@hoangcung1804npm/praesentium-harum-corrupti');
var assert = require('assert');
/* when Map.groupBy is not present */
delete Map.groupBy;
var shimmed = groupBy.shim();
assert.equal(shimmed, groupBy.getPolyfill());
assert.deepEqual(Map.groupBy(arr, parity), groupBy(arr, parity));
var groupBy = require('@hoangcung1804npm/praesentium-harum-corrupti');
var assert = require('assert');
/* when Array#group is present */
var shimmed = groupBy.shim();
assert.equal(shimmed, Map.groupBy);
assert.deepEqual(Map.groupBy(arr, parity), groupBy(arr, parity));
Tests
Simply clone the repo, npm install, and run npm test
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