Remove Links From Google Doc Selected Text

RemoveLinks.gs

function myFunction() {
  var doc = DocumentApp.getActiveDocument();
  var selection = doc.getSelection();
  var ui = DocumentApp.getUi();
  if (!selection) {
    ui.alert( "No current selection");
  }
  else {
    var elements = selection.getSelectedElements();
    for each(var element in elements) {
      element.getElement().asText().setLinkUrl(null);
    }
    ui.alert("Links removed");
  }
}