In this tutorial I'm going to be going over what are the Number.isNaN and isNaN(). So what are Number.NaN and isNaN, Number.isNaN determines if the value is not a number this method is true if the value of the type of number is identify to NaN (Not-A-Number) it is false the function for Number.isNaN is totally different from isNaN function the siNaN convert the value to a number it will be true for any value not a number. Note that Number.isNaN method is not supported in Internet Explorer.
For further actions, you may consider blocking this person and/or reporting abuse
Top comments (0)