Q. Which function is used to check if a value is not a number?

  • (A) isNaN()
  • (B) isNumber()
  • (C) checkNaN()
  • (D) validateNumber()
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✅ Correct Answer: (A) isNaN()
Explanation: isNaN() checks whether a value is NaN.

Published by Mr. Dubey ⭐ 111.54K Points at 11-Jun-2025 06:59 am in JavaScript

Explanation by: Mr. Dubey
isNaN() checks whether a value is NaN.

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