tinymce.full.js
function () {
        var self = this, node, i = this.length;

        while (i--) {
          node = self[i];
          while (node.firstChild) {
            node.removeChild(node.firstChild);
          }
        }

        return this;
      }
function () {
        var self = this, node, i = this.length;

        while (i--) {
          node = self[i];
          while (node.firstChild) {
            node.removeChild(node.firstChild);
          }
        }

        return this;
      }
function ( ) { var self = this , node , i = this . length ; while ( i -- ) { node = self [ i ] ; while ( node . firstChild ) { node . removeChild ( node . firstChild ) ; } } return this ; }
Empties all elements in set.

@method empty
@return {tinymce.dom.DomQuery} Current set with the empty nodes.
Empties all elements in set .