Q. How do you mark a component to use OnPush change detection?

  • (A) Add changeDetection: ChangeDetectionStrategy.OnPush in @Component
  • (B) Add @OnPush decorator to class
  • (C) Import OnPushModule
  • (D) Use ngOnChanges lifecycle hook
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✅ Correct Answer: (A) Add changeDetection: ChangeDetectionStrategy.OnPush in @Component
Explanation: OnPush strategy improves performance by checking only when input references change.

Published by Mr. Dubey ⭐ 111.54K Points at 08-Jun-2025 11:55 am in Angular

Explanation by: Mr. Dubey
OnPush strategy improves performance by checking only when input references change.

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