Lifecycle Hooks in Angular

Angular’s lifecycle hooks are methods in Angular components and directives that allow you to tap into key moments in the lifecycle of a component or directive. Below is a description of the main lifecycle hooks with their execution order and a graph to illustrate their flow:

Key Lifecycle Hooks in Angular

1. ngOnChanges:

• Triggered when the input properties of a component or directive are changed.
• Receives a SimpleChanges object containing the previous and current values of the bound inputs.

2. ngOnInit:

• Called once, after the first ngOnChanges.
• Used for initialization logic that requires input properties to be set.

3. ngDoCheck:

• Called during every change detection run, after ngOnChanges and ngOnInit.
• Used to detect changes that Angular does not.

4. ngAfterContentInit:

Called once after the content (e.g., <ng-content>) is projected into the component.

• Used for logic that depends on projected content.

5. ngAfterContentChecked:

Called after every check of the projected content.

• Used for logic that depends on content changes.

6. ngAfterViewInit: