Q. What is the role of the 'trackBy' function in *ngFor?

  • (A) To filter items
  • (B) To style items
  • (C) To improve performance by tracking item identity
  • (D) To prevent rendering
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✅ Correct Answer: (C) To improve performance by tracking item identity
Explanation: trackBy improves performance by tracking the identity of items.

Published by Mr. Dubey ⭐ 111.54K Points at 08-Jun-2025 11:44 am in Angular

Explanation by: Mr. Dubey
trackBy improves performance by tracking the identity of items.

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