stephenotalora

/**
 * Definition for singly-linked list.
 * function ListNode(val) {
 *     this.val = val;
 *     this.next = null;
 * }
 */
/**
 * @param {ListNode} head
 * @return {ListNode}

stephenotalora

In the powerful world of JS, you can do a lot of crazy things with Bind/Apply/Call. Here, I can show a small example so that it can be easily understood.

function test1(a, b, c) {
  console.log(Array.prototype.slice.call(arguments));
  // What will this output?
}

function test2(fn) {
 fn();