What are hooks in Angular 2?

The Lifecycle hooks are provided by the Angular JS to provide visibility into key moments of the Angular Lifecycle. Angular component goes through a different process of the lifecycle from creation to destruction. These different stages of the lifecycle are called the lifecycle of a component. Angular JS provides visibility into these different stages component through the lifecycle hooks.

There are eight lifecycle hooks in Angular

• ngOnChanges()
• ngOnInit()
• ngDoCheck()
• ngAfterContentInit()
• ngAfterContentChecked()
• ngAfterViewInit()
• ngAfterViewChecked()
• ngonDestroy()