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

function process(csv,valueToDelete) {
  var tmp = ","+csv;
  tmp = tmp.replace(","+valueToDelete,"");
  if (tmp.substr(0,1) == ',') tmp = tmp.substr(1);
  return tmp;
}