Source Code: (back to article)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>querySelectorAll Example</title>
</head>
<body>
<div class="example">Element 1</div>
<div class="example">Element 2</div>
<button onclick="highlightAll()">Highlight All</button>
<script>
function highlightAll() {
const elements = document.querySelectorAll('.example');
elements.forEach((element, index) => {
element.style.backgroundColor = 'lightgreen';
element.textContent = `Element ${index + 1} highlighted!`;
});
}
</script>
</body>
</html>