关于javascript:vue中递归出已知节点的所有父级的id

 findAncestry(arr, id) {   var temp = []   var forFn = function (list, id) {     for (var i = 0; i < list.length; i++) {       var item = list[i]       if (item.id === id) {         temp.unshift(item.id)         forFn(arr, item.parentId)         break       } else {         if (item.children) {           forFn(item.children, id)         }       }     }   }   forFn(arr, id)   temp.unshift('0')   return temp },

应用

 console.log('aaaaaaaaa',this.findAncestry(this.menuOptions,this.form.pid))