how to set timer in javascript

1setTimeout(function(){
2 	alert("Sup!"); 
3}, 2000);//wait 2 seconds

1setTimeout(function() {
2 //your code here
3}, 1000);

1var count = 0;
2  function updateCount() {
3   count = count + 1;
4   document.getElementById("number").innerHTML = count;
5   setTimeout(updateCount, 1000);
6  }

1//single event i.e. alarm, time in milliseconds
2var timeout = setTimeout(function(){yourFunction()},10000);
3//repeated events, gap in milliseconds
4var interval = setInterval(function(){yourFunction()},1000);

1// this example takes 2 seconds to run
2const start = Date.now();
3
4// After a certain amount of time, run this to see how much time passed.
5const milliseconds = Date.now() - start;
6
7console.log('Seconds passed = ' + millis / 1000);
8// Seconds passed = *Time passed*