code: function(name) {
  			var element = this.get(name);
  			if (element) {
  				this._updateSource('', element.fullRange());
  				var ix = this._children.indexOf(element);
  				if (~ix) {
  					this._children.splice(ix, 1);
  				}
  			}
  		}
docs: Remove child element
  @param {String} name Property name or its index