leetcode-237 删除链表的节点

/**
 * Definition for singly-linked list.
 * function ListNode(val) {
 *     this.val = val;
 *     this.next = null;
 * }
 */
/**
 * @param {ListNode} node
 * @return {void} Do not return anything, modify node in-place instead.
 */
var deleteNode = function (node) {
  if (!node) return;
  let cur = node;
  while (cur) {
    cur.val = cur.next.val;
    if (!cur.next.next) {
      cur.next = null;
    }
    cur = cur.next;
  }
};