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How should you correctly define the ngDoCheck method inside an Angular component class?

easy📝 Syntax Q3 of 15
Angular - Lifecycle Hooks
How should you correctly define the ngDoCheck method inside an Angular component class?
AngDoCheck() { /* custom change detection logic here */ }
BngDoCheck: function() { /* logic */ }
Cfunction ngDoCheck() { /* logic */ }
DngDoCheck => { /* logic */ }
Step-by-Step Solution
Solution:
  1. Step 1: Recall Angular lifecycle hook syntax

    Lifecycle hooks are class methods with specific names.
  2. Step 2: Identify correct method declaration

    ngDoCheck is declared as a method without function keyword or arrow syntax.
  3. Final Answer:

    ngDoCheck() { /* custom change detection logic here */ } -> Option A
  4. Quick Check:

    Lifecycle hooks are class methods [OK]
Quick Trick: Declare ngDoCheck as a class method [OK]
Common Mistakes:
  • Using function keyword inside class
  • Using arrow functions for lifecycle hooks
  • Assigning ngDoCheck as a property

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