Answers for "javascript make code run after 3 seconds"

javascript run something after x seconds

setTimeout(function(){
  location.reload();
}, 3000); //run this after 3 seconds

call function after 2 seconds javascript

setTimeout(
    function() {
      document.getElementById('div1').style.display='none';
      document.getElementById('div2').style.display='none';
    }, 5000);