CODE EXAMPLE FOR JAVASCRIPT

function sleep(delay) { var start = new Date().getTime(); while (new Date().getTime() < start + delay); }

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