What is the use of isNaN function?

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prateek jain · Answer

The IsNaN () function determines whether the value is an invalid number (not-a-number). If the value is equal to NaN, then this function is correct. Otherwise it is unreal. This function number is different from the specific number.isNaN () method.
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Anonymous User · Answer

isNan function returns true if the argument is not a number otherwise it is false.

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What is the use of isNaN function?

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