lib/kissy/5.0.0-alpha.3/build/tree-debug.js
function () {
            var self = this;
            self.set('expanded', false);
            util.each(self.get('children'), function (c) {
                c.collapseAll();
            });
        }
function () {
            var self = this;
            self.set('expanded', false);
            util.each(self.get('children'), function (c) {
                c.collapseAll();
            });
        }
function ( ) { var self = this ; self . set ( 'expanded' , false ) ; util . each ( self . get ( 'children' ) , function ( c ) { c . collapseAll ( ) ; } ) ; }
Collapse all descend nodes of current node
Collapse all descend nodes of current node