Angular - Lifecycle Hooks
Which lifecycle hook is called once after Angular first displays the data-bound properties of a component?
Which lifecycle hook is called once after Angular first displays the data-bound properties of a component?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify lifecycle hook timing
ngOnInit runs once after Angular sets input properties and displays data-bound properties.Step 2: Match hook to description
ngOnDestroy runs on destruction, ngAfterViewInit after view init, ngDoCheck on every change detection; only ngOnInit fits.Final Answer:
ngOnInit -> Option DQuick Check:
First display hook = ngOnInit [OK]
Quick Trick: ngOnInit runs once after inputs are set [OK]
Common Mistakes:
- Confusing ngOnInit with ngAfterViewInit
- Thinking ngOnDestroy runs on initialization
Master "Lifecycle Hooks" in Angular
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Angular Quizzes