tinymce.html.js
function() {
                var nodes, i, node, self = this;
                // Remove all children
                if (self.firstChild) {
                    nodes = [];
                    // Collect the children
                    for (node = self.firstChild; node; node = walk(node, self)) {
                        nodes.push(node);
                    }
                    // Remove the children
                    i = nodes.length;
                    while (i--) {
                        node = nodes[i];
                        node.parent = node.firstChild = node.lastChild = node.next = node.prev = null;
                    }
                }
                self.firstChild = self.lastChild = null;
                return self;
            }
function() {
                var nodes, i, node, self = this;
                // Remove all children
                if (self.firstChild) {
                    nodes = [];
                    // Collect the children
                    for (node = self.firstChild; node; node = walk(node, self)) {
                        nodes.push(node);
                    }
                    // Remove the children
                    i = nodes.length;
                    while (i--) {
                        node = nodes[i];
                        node.parent = node.firstChild = node.lastChild = node.next = node.prev = null;
                    }
                }
                self.firstChild = self.lastChild = null;
                return self;
            }
function ( ) { var nodes , i , node , self = this ; // Remove all children if ( self . firstChild ) { nodes = [ ] ; // Collect the children for ( node = self . firstChild ; node ; node = walk ( node , self ) ) { nodes . push ( node ) ; } // Remove the children i = nodes . length ; while ( i -- ) { node = nodes [ i ] ; node . parent = node . firstChild = node . lastChild = node . next = node . prev = null ; } } self . firstChild = self . lastChild = null ; return self ; }
Removes all children of the current node.

@method empty
@return {tinymce.html.Node} The current node that got cleared.
Removes all children of the current node .