JamieMason

Group Array of JavaScript Objects by Key or Property Value

Implementation

const groupBy = key => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = obj[key];
    objectsByKeyValue[value] = (objectsByKeyValue[value] || []).concat(obj);
    return objectsByKeyValue;

benjamincharity

beforeEach(async(() => {
    TestBed.configureTestingModule({
        imports: [
            MdToolbarModule,
        ],
        providers: [
            {
                provide: Router,
                useClass: MockRouter,
            },

thefuxia

<?php # -*- coding: utf-8 -*-
/**
 * Create a nav menu with very basic markup.
 *
 * @author Thomas Scholz http://toscho.de
 * @version 1.0
 */
class T5_Nav_Menu_Walker_Simple extends Walker_Nav_Menu
{
	/**