Latihan 4 Javascript

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Latihan Javascript 4</title>
</head>
<body>
    <h1 class="heading">Heading 1</h1>
    <h2 class="heading">Heading 1</h2>
    <p class="text">Paragraf 1</p>
    <p class="text">Paragraf 2</p>
    <p class="text">Paragraf 3</p>
    <p class="text">Paragraf 4</p>
    <p class="text">Paragraf 5</p>
    <button onclick="ubahStyle()">Ubah Style</button>

    <script>

        function ubahStyle(){
            // Mau ambil pakai tag HTML
            var h1 = document.querySelectorAll('h1.heading');
            var listH1 = document.getElementsByClassName('heading');
            var text = document.getElementsByClassName('text');
            console.log(h1);
            console.log(listH1);
            console.log(text);
            console.log(text[2].innerHTML);
        }

    </script>
</body>
</html>