function animateNumber(callback,from,to,duration){
let start = null,
animate = timestamp =>{
start = start||timestamp;
let progress = Math.min((timestamp - start)/duration,1);
callback(progress * (to - from) + from);
if(progress < 1){
window.requestAnimationFrame(animate);
}
};
window.requestAnimationFrame(animate);
}
animateNumber((value)=>{
document.querySelector('strong').textContent = Math.floor(value)
},0,1000,5000);
<strong>0</strong>