A

Admin • 802.91K Points
Coach

Q. What does `trackBy` do in an *ngFor directive?

  • (A) Optimizes rendering by tracking list items
  • (B) Binds data to a template
  • (C) Sorts items in a list
  • (D) Filters list items
  • Correct Answer - Option(A)
  • Views: 6
  • Filed under category Angular JS
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Explanation by: Admin
Using `trackBy` improves performance by uniquely identifying list items.

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