I have the following code - All it does it grabs the value in a text box, performs regex on the string and then counts how many asterisks are in the string value:

var textBoxValue = $(textbox).val();



function countHowManyWildCards(stringToSearch) {



    var regex = new RegExp(/*/g);

    var count = stringToSearch.toString().match(regex).length;

    return count;



}



if (countHowManyWildCards(textBoxValue) > 1) {



//Other code

}

The code seems to work, but there is an error appearing on:

stringToSearch.toString().match(regex).length;

The error states:

Unable to get property 'length' of undefined or null reference

But I am unclear why the code works, but I still have this error? Can someone fill me in on why this happening?