C++

1class Solution {
2  public:
3    void deleteNode(ListNode* node) {
4      node->val = node->next->val;
5      ListNode *temp = node->next;
6      node->next = node->next->next;
7      delete temp;
8    }
9};

JavaScript

1var deleteNode = function(node) {
2  node.val = node.next.val;
3  node.next = node.next.next;
4};

Ruby

1def delete_node(node)
2  node.val = node.next.val
3  node.next = node.next.next
4end