hw to use sleep in js code example

Example 1: javascript sleep

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...
}

Example 2: js sleep

// Sync version
function sleep(sleepDuration){
    var now = new Date().getTime();
    while(new Date().getTime() < now + sleepDuration){ /* do nothing */ } 
}