js递归调用注意return返回值

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转载：  http://blog.csdn.net/a1017680279/article/details/72953887 copy

调用：
            //获得公司树结构中的已选中节点
            var selectedNode = $("#resourceTree").tree('getSelected');
            //console.log(selectedNode);
            var rootNode = getTreeRoot(selectedNode);
            console.log('rootNode====')
            console.log(rootNode);
            if(rootNode !=null && rootNode != 'undefined' &&rootNode.text == '金控'){
                alert('金控');
            }else{
                alert('非金控');
            }
递归方法：
        //获得公司结构的节点node对应的最上层节点
        function getTreeRoot(node){
            console.log('getTreeRoot====node');
            console.log(node);
            var parentNode = $("#resourceTree").tree('getParent',node.target);
            console.log('getTreeRoot()=====');
            console.log(parentNode);
            if (parentNode == null){
                console.log('getTreeRoot()=====null');
                console.log(node);
                return node;
            }else{
                console.log('getTreeRoot====else');
                //这里需要对递归方法进行return
                return getTreeRoot(parentNode);
            }
        }

转载：http://blog.csdn.net/a1017680279/article/details/72953887