How To Use Async Pipe in Angular 8

Introduction 

In this article, we are going to learn how to use an Async Pipe in Angular applications. 

What Is Async Pipe?

Async Pipe is an impure pipe that automatically subscribes to an observable to emit the latest values. It not only subscribes to an observable, but it also subscribes to a promise and calls the then method. When the components get destroyed, it automatically unsubscribes them to reduce memory leaks.