JSFiddle - React, Tailwind, and code Playground

HTML

<b>computer score:</b><p id="computerScore" data-value="0">-</p>
<button type="button" onclick="rps()">Go</button><br>

JavaScript

var computerScore = document.getElementById('computerScore');
function rps() {
    console.log(computerScore.dataset.value);
computerScore.dataset.value++;
computerScore.innerHTML = computerScore.dataset.value;
}