code: function () {
      var self = this;
  
      // Remove child
      self.dropdownContainerView.remove();
  
      // Remove event listeners
      document.body.removeEventListener("click", self.deferClose);
      if (self.options.closeOnEsc) {
        document.body.removeEventListener("keyup", self.closeOnEsc);
      }
      self.$el.off("click", self.stopDeferClose);
      self.$dropdownButton.off("click", self.toggle);
  
      // Invoke original backbone methods
      return Backbone.View.prototype.remove.apply(self, arguments);
    }
docs: Clean up this control
  
  @method remove
  @chainable