A

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Q. What does the isNaN() function do?

  • (A) Checks if a value is NaN
  • (B) Converts a string to a number
  • (C) Checks if a value is null
  • (D) Checks if a value is undefined
  • Correct Answer - Option(A)
  • Views: 23
  • Filed under category JavaScript
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Explanation by: Admin

isNaN() checks whether a value is NaN (Not a Number).

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