javascript how to run setTimeout code example

Example 1: javascript settimeout

setTimeout(function(){
 	alert("Sup!"); 
}, 2000);//wait 2 seconds

Example 2: javascript settimeout

var timeoutID;

function delayedAlert() {
  timeoutID = window.setTimeout(window.alert, 2*1000, 'That was really slow!');
}

function clearAlert() {
  window.clearTimeout(timeoutID);
}