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JavaScript

IsNumeric function used to check the numeric or not.

isNaN function used to check the value is a number or not. If the values is numeric its return true else returned false.


Syntax :

bool IsNumeric(string)

function IsNumeric(val) {

    if (isNaN(parseFloat(val))) {

          return false;

     }

     return true

}

Rating :

Comments gummed Dec 06 09 02:30:02 This function is much better: function isNumber(n) {   return !isNaN(parseFloat(n)) && isFinite(n); } See http://dl.dropbox.com/u/35146/js/tests/isNumber.html for details mugdha Oct 10 09 12:07:55 nice tution

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