如何实现一个 sleep 函数

	 function sleep(n) {
		Atomics.wait(new Int32Array(new SharedArrayBuffer(4)), 0, 0, n);
	 }
 

	console.time('test');
	sleep(2000)
	console.timeEnd('test');

	function sleep(ms){
	    return new Promise((resolve)=>{
	 setTimeout(resolve,ms)
	    })
	}
 

	console.time('test');
	sleep(2000).then(()=>{
	    console.timeEnd('test');
	})