<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>getElementsByClassName Example</title>
</head>
<body>
<div class="example">Element 1</div>
<div class="example">Element 2</div>
<button onclick="changeContent()">Change Content</button>
<script>
function changeContent() {
const elements = document.getElementsByClassName('example');
Array.from(elements).forEach((element, index) => {
element.textContent = `Element ${index + 1} changed!`;
});
}
</script>
</body>
</html>