Tag Archives: Angular

Why use exportAs Property in Angular

Have you used exportAs property of a directive? It could be instrumental in working with public methods of a directive. Let us say; you have created a custom directive to change the background colour of the host element on the mouse hover as below, import { Directive, Input, HostListener, ElementRef } from ‘@angular/core’; @Directive({ selector:ContinueContinue reading “Why use exportAs Property in Angular”

Video – Simplifying Dependency Injection and Services in Angular, ng-India Webinar recording

In this webinar, you learn about Tree shakabale service Singleton service Various provideIn options such as forRoot, anyProviders useClass, useFactory, useValue, useExisting Global Error Handling Services in lazy loaded modules https://www.youtube.com/watch?v=OMqqh1eIeXE For more such videos subscribe to the channel here : https://www.youtube.com/c/geek97

When to use viewProviders in Angular – Simplified

I have often seen developers are confused about viewProviders property of the @Componnet decorator.  This post explains to you about the viewProviders option. The viewProviders defines the set of injectable objects that are visible to its view, DOM children. They are not visible to the content children. At the component level, you can provide a service in two ways: Using the providers arrayUsing the viewProviders array. IfContinueContinue reading “When to use viewProviders in Angular – Simplified”

How to use useClass with Tree Shakable Services in Angular

Recently, I was asked that how can we use providers such as useClass inside a Tree Shakable service?   By default, Angular services are tree shakable, which means if the application does not use them, they are not part of the final bundle. So, if you create a service using CLI as, ng g s LogContinueContinue reading “How to use useClass with Tree Shakable Services in Angular”

Do Angular useExisting providers create a new object of service?

Short answer is NO, the useExisting provider use object created by other tokens. Read on, To learn more about such concepts, join a free webinar on Saturday, 20 June 4 PM IST. RSVP here: https://www.meetup.com/Geek97/events/271292371/ In Angular, providers determine how an object of a particular token gets created. That means whether Angular creates a newContinueContinue reading “Do Angular useExisting providers create a new object of service?”

Thank you for ng-India 2020, find Photos and Resources here.

Hey there! I’m Dhananjay Kumar, organizer of India’s Largest Angular Conference, ng-India. I thank you for participating in ng-India on 29 Feb 2020 in Delhi. It is you, who has made ng-India, India’s (or perhaps Asia’s) Largest Angular Conference. I hope you had a good time learning from esteem speakers from across the world, youContinueContinue reading “Thank you for ng-India 2020, find Photos and Resources here.”