Answers for "set timer for 10 seconds javascript"

javascript settimeout

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

javascript countdown 10 seconds

var timeleft = 10;
var downloadTimer = setInterval(function(){
  if(timeleft <= 0){
    clearInterval(downloadTimer);
  }
  document.getElementById("progressBar").value = 10 - timeleft;
  timeleft -= 1;
}, 1000);
<progress value="0" max="10" id="progressBar"></progress>