Angular Lifecycle Hooks

In this article, we will know about the lifecycle of Angular components. Since, in Angular, a component is the main building block of the application, it is very important to understand the lifecycle processing steps of the components so that we can understand the...
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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 the same operation of setting the value of form control. Updating Form controls from a model is very easy and flexible in Reactive Form API of...
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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 into a series of instructions. These instructions create DOM trees and update them in-place when the data changes. For instance, the following...
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What is Injectable decorator?

Injectable decorator (@Injectable) marks a class as available to Injector for creation. import { Injectable } from '@angular/core'; @Injectable({ providedIn: 'root', }) export class UserService { } The service itself is a class that the CLI generated and...
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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 the @Injectable() to "root".Include the service in the AppModule or in a module that is only imported by the AppModule import {...
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A gentle introduction into tree shaking in Angular Ivy

First, let’s understand a few key terms and I will also include references to articles if you need a deeper understanding of these concepts: Ivy — It is the code name for Angular’s next-generation compilation and rendering pipeline. Read here and for...
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Angular Material dialog send data on close dialog

I am just writing a small code that will help fellow developers to pass an object after the dialog is closed. <!--Dialog Compoenent / popup --> <div [innerHTML]="data"></div> <button (click)="cancel()">No</button> <button...
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@Decorators available in Angular

@Decorators are a design pattern that is used to separate modification or decoration of a class without modifying the original source code. Here is a list of @Decorators available in...
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Angular route using query params

We can add query params in url simply by following simple rule. <a [routerLink]="['product-list']" [queryParams]="{ page: 99 }">Go to Page 99</a> With typescript we can do the same as below. this.router.navigate(['/product-list'], {...
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Angular route using route params

We can use route feature of angular to move from one component to another. The template way of using the route feature is as below. <button class="btn btn-success" [routerLink]="['/dashboard', data1, data2, data3]">Continue</button> We can route...
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