Angular Lifecycle Hooks
📘 Angular
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📅 Nov 14, 2025
⏱ Estimated reading time: 1 min
Angular Lifecycle Hooks
Angular components go through a series of lifecycle stages from creation to destruction. Lifecycle hooks allow developers to tap into these stages and perform actions.
Common Lifecycle Hooks
- ngOnInit() – Called once the component is initialized.
- ngOnChanges() – Called when input properties change.
- ngDoCheck() – Custom change detection.
- ngAfterViewInit() – After component view is initialized.
- ngOnDestroy() – Cleanup code before component is destroyed.
Example
export class ExampleComponent implements OnInit, OnDestroy {
ngOnInit() {
console.log('Component Initialized');
}
ngOnDestroy() {
console.log('Component Destroyed');
}
}
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