Javascript

Sleep

The code

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

Usage Sleep for 1 second (1000 milliseconds):

console.log(new Date());
console.log('Dude!');
sleep(1000);
console.log(new Date());