Check if a string has white space

Question

I\'m trying to check if a string has white space. I found this function but it doesn\'t seem to be working:

function hasWhiteSpace(s) 
{
            


        

Answer 1

Here is my suggested validation:

var isValid = false;

// Check whether this entered value is numeric.
function checkNumeric() {
    var numericVal = document.getElementById("txt_numeric").value;

    if(isNaN(numericVal) || numericVal == "" || numericVal == null || numericVal.indexOf(' ') >= 0) {
        alert("Please, enter a numeric value!");
        isValid = false;
    } else {
        isValid = true;
    }
}