dist/es5/dev/templating/dom.js
function append(parent, child) {
            if (parent.el !== undefined && child.el !== undefined) {
                parent.el.appendChild(child.el);
            }
        }
function append(parent, child) {
            if (parent.el !== undefined && child.el !== undefined) {
                parent.el.appendChild(child.el);
            }
        }
Insert element to the end of parent childs  @method append @param {dom.Element} parent @param {dom.Element} child