javascript nan

What Is NaN (Not a Number)?

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What Is NaN (Not a Number)?

In computing the NaN (Not a Number) is used to express given value or data is not a number. Especially systems and programming languages use different data types like characters, strings, text, numbers, floating-point numbers, etc. in order to store related data. The numbers are defined with the IEEE 754 and NaN is officially provided. … Read more

JavaScript isNaN() Method Tutorial

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JavaScript isNaN() Method Tutorial

JavaScript provides the isNaN() method in order to check whether a given value or variable is a number or not. NaN is the short form the “Not a Number” and checks for negative cases. If the given value or variable is not a number it will return true, if a number it will return false. … Read more