javascript sleep

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

// Use like so:

sleepFor(1000)
alert("hi")

                                    //Javascipt is asyncronous so you can't pause/block code execution<br/>//You can delay doing something with setTimeout<br/>setTimeout(function(){<br/> 	alert(&quot;Sup!&quot;); <br/>}, 2000);//wait 2 seconds

                                    How to get a JavaScript sleep function

First, you must sacrifice JS to the gods of asynchronous programming.
Then, go to grepper and ctrl c + v some code with no idea how to use it.
Give up.
Realise you didnt need it in the first place.
Die inside a little.
Realise you should have stayed with python.
Learn Java out of frustration.

                                    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!");

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