2621. Sleep

Given a positive integer millis, write an asynchronous function that sleeps for millis milliseconds. It can resolve any value. Note that minor deviation from millis in the actual sleep duration is acceptable. Example 1: Input: millis = 100 Output: 100 Explanation: It should return a promise that resolves after 100ms. let t = Date.now(); sleep(100).then(() => { console.log(Date.now() - t); //