javascript show setTimeout code example

Example 1: javascript settimeout

setTimeout(function(){ alert("Hello"); }, 3000);

Example 2: javascript settimeout

var timeoutID;

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

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