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QWhat does the isNaN() function do in JavaScript?

ID: #4867 Javascript Functions MCQ 221 views
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#4867Q ID
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Javascript Functions MCQTopic
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  • A Converts a value to a number ✔ ✖
  • B Checks if a value is a number ✔ ✖
  • C Checks if a value is not a number ✔ ✖
  • D None of these ✔ ✖
Correct Answer

Explanation

The isNaN() function checks if a value is not a number (NaN).
It returns true if the value is NaN, and false if it is not.

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