Angular is a popular JavaScript framework used for building web applications. It has several lifecycle hooks that allow developers to perform specific actions during different stages of an Angular component's lifecycle.
The following are the various lifecycle hooks available in Angular.
ngOnChanges
This hook is called when an input property of the component changes. It receives a SimpleChanges object as a parameter that provides information about the changes.
ngOnInit
This hook is called after the component is initialized and its input properties set. It is an excellent place to perform initialization tasks such as retrieving data from a server.
ngDoCheck
This hook is called during every change detection cycle. It can detect and respond to changes that Angular doesn't detect automatically.
ngAfterContentInit
This hook is called after the content of the component has been projected into its view.
ngAfterContentChecked
This hook is called after the content of the component has been checked for changes.
ngAfterViewInit
This hook is called after the component's view has been initialized.
ngAfterViewChecked
This hook is called after the component's view has been checked for changes.
ngOnDestroy
This hook is called just before the component is destroyed. It is an excellent place to perform cleanup tasks such as unsubscribing from observables or removing event listeners.
By leveraging these lifecycle hooks, Angular developers can perform various tasks at different stages of a component's lifecycle, enabling them to build more robust and performant applications.