sleep:function(milliseconds){ return new Promise(resolve => setTimeout(resolve, milliseconds)) }, code example

Example 1: js add delay with promises

await new Promise(resolve => setTimeout(resolve, 1000));

Example 2: javascript version of sleep

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

Example 3: sleeping in js

function sleep(milliseconds) {
  var start = new Date().getTime();
  for (var i = 0; i < 1e7; i++) {
    if ((new Date().getTime() - start) > milliseconds){
      break;
    }
  }
}

//using sleep()
sleep(2000); //sleep for 2 seconds