A

Admin • 833K Points
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Q. What is the purpose of the trackBy function in *ngFor?

  • (A) To improve performance by tracking list items
  • (B) To display index numbers
  • (C) To bind CSS styles
  • (D) To change layout structure
  • Correct Answer - Option(A)
  • Views: 28
  • Filed under category Angular JS
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Explanation by: Admin

trackBy helps Angular track which items have changed, improving performance.

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