1. /**
    2.  * Definition for singly-linked list.
    3.  * function ListNode(val) {
    4.  *     this.val = val;
    5.  *     this.next = null;
    6.  * }
    7.  */
    8. /**
    9.  * @param {ListNode} head
    10.  * @return {number[]}
    11.  */
    12. var reversePrint = function(head) {
    13.   const res = []
    15.   while(head) {
    16.     res.unshift(head.val)
    17.     head = head.next
    18.   }
    20.   return res
    21. };