How to animate a number ticking up in HTML [closed]

Edit: I figured it out myself. If this question was re-opened, I could provide my own answer.

I'm trying to have a number "tick up" when it changes, in a similar fashion to Twitter's like/retweet/comment counters and Discord's reaction counter. I haven't found any information about this on the web (mainly because I don't know what it's formally called).

Edit: I forgot to include the code, here it is:

The counter element itself:

<span id="counter" class="counter">0</span>

The CSS for the element:

.counter {
    display: inline-block;
    height: 15px;
    font-size: 15px;
    overflow-y: hidden;
}

The JavaScript for changing the counter:

function changeCounter(id, num) {
    var _x = document.getElementById(id);
    _x.innerHTML += _x.innerHTML + "<br>" + num;
    _x.style.transition = "0.2s";
    setTimeout(function () {
        _x.style.marginTop = "-15px";
        setTimeout(function () {
            _x.innerHTML = num;
            _x.style.transition = "0";
            _x.style.marginTop = "0";
        }, 200);
    }, 16);
}

What happens is that it puts the new number next to the original number, goes up, and goes down with just the new number. I want it to have the new number under the old one and just snap to its original position after it stops animating.

function changeCounter(id, num) {
    var _x = document.getElementById(id);
    _x.innerHTML += _x.innerHTML + "<br>" + num;
    _x.style.transition = "0.2s";
    setTimeout(function () {
        _x.style.marginTop = "-15px";
        setTimeout(function () {
            _x.innerHTML = num;
            _x.style.transition = "0";
            _x.style.marginTop = "0";
        }, 200);
    }, 16);
}

.counter {
    display: inline-block;
    height: 15px;
    font-size: 15px;
    overflow-y: hidden;
}

<span id="counter" class="counter">0</span>

<button onclick="changeCounter('counter', Math.floor(Math.random()*100))">Change</button>

Via Active questions tagged javascript - Stack Overflow https://ift.tt/0Cb8oBq