JSFiddle - React, Tailwind, and code Playground

by Cameron Bernhardt

HTML

Experience: <span id="exp">0</span>

<br/>Level: <span id="level">0</span>

<br/>
<br/>
<button onclick="increment();">Increment</button>

JavaScript

var exp = 0,
    level = 0;

function increment() {
    exp++;
    document.getElementById("exp").innerHTML = exp;
    if (exp == 100) {
        level = level + 1;
        exp = 0;
        document.getElementById("level").innerHTML = level;
    }
}