prettier-example.js

function initializeClock(id, endtime) {
  var clock = document.getElementById(id);
  var timeinterval = setInterval(function() {
    var t = getTimeRemaining(endtime);
    clock.innerHTML =
      "days: " +
      t.days +
      "<br>" +
      "hours: " +
      t.hours +
      "<br>" +
      "minutes: " +
      t.minutes +
      "<br>" +
      "seconds: " +
      t.seconds;

    if (t.total <= 0) {
      clearInterval(timeinterval);
    }
  }, 1000);
}