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# 題目敘述
Given a positive integer millis , write an asyncronous function that sleeps for millis milliseconds. It can resolve any value.
# 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); // 100
});
# Example 2
Input: millis = 200
Output: 200
Explanation: It should return a promise that resolves after 200ms.
# Solution
/** | |
* @param {number} millis | |
*/ | |
async function sleep(millis) { | |
return new Promise(resolve => setTimeout(resolve, millis)); | |
} | |
/** | |
* let t = Date.now() | |
* sleep(100).then(() => console.log(Date.now() - t)) // 100 | |
*/ |
async function sleep(millis: number): Promise<void> { | |
return new Promise(resolve => setTimeout(resolve, millis)); | |
} | |
/** | |
* let t = Date.now() | |
* sleep(100).then(() => console.log(Date.now() - t)) // 100 | |
*/ |
