“Fügen Sie dem JavaScript -Quiz Countdown -Timer hinzu” Code-Antworten

Fügen Sie dem JavaScript -Quiz Countdown -Timer hinzu

var count = 15;
var interval = setInterval(function(){
  document.getElementById('count').innerHTML=count;
  count--;
  if (count === 0){
    clearInterval(interval);
    document.getElementById('count').innerHTML='Done';
    // or...
    alert("You're out of time!");
  }
}, 1000);