Angular 17 Tutorial | Component Lifecycle Hooks | Angular Lifecycle Hooks: A Complete Guide
Angular 17 Tutorial:-
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What is the life cycle of an Angular 17 component?
A component's lifecycle is the sequence of steps that happen between the component's creation and its destruction. Each step represents a different part of Angular's process for rendering components and checking them for updates over time.
What is the life cycle of an Angular 17 component?
A component's lifecycle is the sequence of steps that happen between the component's creation and its destruction. Each step represents a different part of Angular's process for rendering components and checking them for updates over time.
Phase 1 -
Creation:
constructor:- Standard JavaScript class constructor. Runs when Angular instantiates the component.
Phase 2 -
Change Detection:
ngOnInit:- Runs once after Angular has initialized all the component's inputs.
Phase 3 -
Rendering:-
ngOnChanges:- Runs every time the component's inputs have changed.
ngDoCheck:- Runs every time this component is checked for changes.
ngAfterViewInit:- Runs once after the component's view has been initialized.
ngAfterContentInit:- Runs once after the component's content has been initialized.
ngAfterViewChecked:- Runs every time the component's view has been checked for changes.
ngAfterContentChecked:- Runs every time this component content has been checked for changes.
afterNextRender:- Runs once the next time that *all components have been rendered to the DOM.
afterRender:- Runs every time *all* components have been rendered to the DOM.
Phase 4 -
Destruction:
ngOnDestroy:- Runs once before the component is destroyed.
Overriding LifeCycle Angular 17:- • Angular 17 Tutorial | Overriding Lifecycle...
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