Get selected value/text

selectedvalue.js

// I saw a sample code like this, but don't do it.
function() {
  var selectId = "mySelectList";
  try {
    var options = document.getElementById(selectId).options;
    for (var i = 0;i < options.length;i++){
      if(options[i].selected) {
        return options[i].value;
      }
    }
  } catch(e) {}
  return "";
}

// The much better way is using querySelector.
var selectItem = document.querySelector("#" + selectId);
return selectItem.options[selectItem.selectedIndex].value;

// And, finally, even better than better.
return document.getElementById(selectId).value;