Do I have to write my own IsNumeric function?

Posted by cf_PhillipSenn on Stack Overflow See other posts from Stack Overflow or by cf_PhillipSenn
Published on 2010-04-05T18:17:27Z Indexed on 2010/04/05 18:23 UTC
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JavaScript

I found this function:

function IsNumeric(sText) {
    var ValidChars = "0123456789.";
    var IsNumber=true;
    var Char;

    for (i = 0; i < sText.length && IsNumber == true; i++) { 
       Char = sText.charAt(i); 
       if (ValidChars.indexOf(Char) == -1){
          IsNumber = false;
      }
   }
    return IsNumber;
};

Q: Isn't there a built-in JavaScript function for isNumeric? Something like val()?

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Developer IT

Do I have to write my own IsNumeric function? - Developer IT

Do I have to write my own IsNumeric function?

JavaScript

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