Priti Kumari
What is NaN Function in Javascript?
By Priti Kumari in .NET on Dec 24 2013
  • Palle Technologies
    Apr, 2014 2

    NaN refers to Not a Number , which is used for identifying wether a variable is having a number or not ?

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  • prince singh
    Dec, 2013 26

    Check whether a number is an illegal number or not... Example: 1) var A1 = isNaN(523) .....output:false 2) var B1 = isNaN("12").....output :true

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  • Roymon TP
    Oct, 2014 9

    Not a number ,which used in client side to check input is number or not

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  • Akhil Garg
    Sep, 2014 14

    NaN is Not a Number , which is used for identifying that a variable is a number or not ? This function returns true if the value is NaN, and false if not.

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  • Vithal Wadje
    Jan, 2014 12

    most of the time NaN is used whether the given value is number or not

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  • rakesh chaudhari
    Jan, 2014 6

    that is 'Not a Number' it is use to check the given value is number or not

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  • Salman  Mushtaq
    Jan, 2014 1

    It simply means the input you enter NaN(Not a Number)

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  • Mahesh Alle
    Dec, 2013 27

    The isNaN() function determines whether a value is an illegal number (Not-a-Number). This function returns true if the value is NaN, and false if not. E.g.:- var a = isNaN(123) Out:-false and var e = isNaN("Hello") Out:- true

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