this method is to enter a linked list and then print the linked list from end to end
function ListNode(x){
this.val = x;
this.next = null;
}
function printListFromTailToHead(head)
{
// write code here
var arr = [];
while(head != null) {
// var a = head.val;
// console.log(a);
arr.unshift(head.val);
head = head.next;
}
return arr;
}
1
2printListFromTailToHead(1,2,3)
parameter requires that the first element of the linked list be transferred, so you need to create the linked list in this way, and then call the method of printing the linked list
.var head = new ListNode(1);
var second = new ListNode(2);
var third = new ListNode(3);
head.next = second;
second.next = third;
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