remove value from comma separated values string

Question

I have a csv string like this \"1,2,3\" and want to be able to remove a desired value from it.

For example if I want to remove the value: 2, the output string should

Answer 1

// Note that if the source is not a proper CSV string, the function will return a blank string ("").
function removeCsvVal(var source, var toRemove)      //source is a string of comma-seperated values,
{                                                    //toRemove is the CSV to remove all instances of
    var sourceArr = source.split(",");               //Split the CSV's by commas
    var toReturn  = "";                              //Declare the new string we're going to create
    for (var i = 0; i < sourceArr.length; i++)       //Check all of the elements in the array
    {
        if (sourceArr[i] != toRemove)                //If the item is not equal
            toReturn += sourceArr[i] + ",";          //add it to the return string
    }
    return toReturn.substr(0, toReturn.length - 1);  //remove trailing comma
}

To apply it too your var values:

var values = removeVsvVal(selectedvalues, "2");