Angular 17 Tutorial | Component Lifecycle Hooks | Angular Lifecycle Hooks: A Complete Guide

Publié le: 12 janvier 2024
sur la chaîne: Code Sample

192

Angular 17 Tutorial:-
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Component Lifecycle Hooks:-    • Angular 17 Tutorial | Component Lifecycle ...
Prerendering Static Site Generation (SSG):-    • Angular 17  Tutorial | Prerendering Static...
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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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