function countNumbers(queryID, time){ let count = document.getElementById(queryID) let finalNumber = parseInt(count.textContent, 10) let duration = time let start const step = timeStamp => { if (!start) start = timeStamp let progress = (timeStamp - start) / duration count.textContent = Math.floor(progress * finalNumber) if (progress < 1) requestAnimationFrame(step) } requestAnimationFrame(step) } document.onload = countNumbers('count', 2000)

 <p>Happy new year <span id="count">2022</span></p>