code: function () {
          var me = this,
              args = arguments;
  
          if (me.hasOwnProperty('childEls')) {
              me.childEls.push.apply(me.childEls, args);
          } else {
              me.childEls = me.getChildEls().concat(Array.prototype.slice.call(args));
          }
          
          me.prune(me.childEls, false);
      }
docs: Adds each argument passed to this method to the {@link Ext.AbstractComponent#cfg-childEls childEls} array.