code: function eventEnd ( event, data ) {
  
              // The handle is no longer active, so remove the class.
              if ( scope_ActiveHandle ) {
                  removeClass(scope_ActiveHandle, options.cssClasses.active);
                  scope_ActiveHandle = false;
              }
  
              // Remove cursor styles and text-selection events bound to the body.
              if ( event.cursor ) {
                  document.body.style.cursor = '';
                  document.body.removeEventListener('selectstart', document.body.noUiListener);
              }
  
              // Unbind the move and end events, which are added on 'start'.
              document.documentElement.noUiListeners.forEach(function( c ) {
                  document.documentElement.removeEventListener(c[0], c[1]);
              });
  
              // Remove dragging class.
              removeClass(scope_Target, options.cssClasses.drag);
  
              setZindex();
  
              data.handleNumbers.forEach(function(handleNumber){
                  fireEvent('set', handleNumber);
                  fireEvent('change', handleNumber);
                  fireEvent('end', handleNumber);
              });
          }
docs: Unbind move events on document, call callbacks.