Call, Apply and Bind in JavaScript

Call, Apply and Bind in JavaScript are very powerful function that allows you to borrow object properties and method....
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Create custom filter using Array Prototype

As a JavaScript developer most of us are pretty familiar with filter method of JavaScript. Like the code below. let...
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Angular detect if the page is changed

import { NavigationEnd, Router } from '@angular/router'; this._router.events.subscribe((event) => { ...
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Validate URL for image with valid extension

This function will allow you to validate any image url that ends with either jpeg, jpg, gif or png. function...
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Angular Lifecycle Hooks

In this article, we will know about the lifecycle of Angular components. Since, in Angular, a component is the main...
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setValue() And patchValue() In Angular 2

From angular two with reactive form its very easy to update the form controls value via these two method. Both perform...
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Incremental DOM with IVY in Angular

Incremental DOM is used internally at Google, and it is defined by this key idea: Every component gets compiled...
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What is Injectable decorator?

Injectable decorator (@Injectable) marks a class as available to Injector for creation. import { Injectable } from...
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Singleton service in Angular

There are two ways to make a service a singleton in Angular: Set the providedIn property of...
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