Make a clicker game

<h1>Let's play a game</h1>
        <button class="btn" id="btn">Click me</button>
        <span id="score">0</span>
        <script>
            const btn = document.querySelector('#btn');
            const score = document.querySelector('#score');
            btn.addEventListener('click', () => {
                score.innerText ++
            })
        </script>