javascript sleep function

const sleep = (milliseconds) => {
  return new Promise(resolve => setTimeout(resolve, milliseconds))
}

/*Use like so*/

async function timeSensativeAction(){ //must be async func
  //do something here
  await sleep(5000) //wait 5 seconds
  //continue on...
}function sleep(milliseconds) {
  const date = Date.now();
  let currentDate = null;
  do {
    currentDate = Date.now();
  } while (currentDate - date < milliseconds);
}

console.log("Hello");
sleep(2000);
console.log("World!");function sleep(ms) {
   return new Promise(resolve => setTimeout(resolve, ms));
}function sleep(ms) {
  return new Promise(resolve => setTimeout(resolve, ms));
}

async function demo() {
  console.log('Taking a break...');
  await sleep(2000);
  console.log('Two seconds later, showing sleep in a loop...');

  // Sleep in loop
  for (let i = 0; i < 5; i++) {
    if (i === 3)
      await sleep(2000);
    console.log(i);
  }
}

demo();//Implement sleep function
function sleep(milliseconds) {
  return new Promise((resolve) => {
    setTimeout(resolve, milliseconds);
  });
}

//How to use sleep function
async function delayedGreeting() {
  console.log("Hello");
  
  await sleep(2000); //2 Seconds
  
  console.log("World!");
}

delayedGreeting();
sleep = milliseconds => new Promise(resolve => setTimeout(resolve, milliseconds));

//        V  Must add this async keyword
sayHi = async () => {
  	// V Must include await
	await sleep(1000); // Sleep 1000 milliseconds (1 second)
  	console.log('Hi');
  	// Rest of code...
}