"Don's Rubber Ducks"
<h2 id="shop">Don's Rubber Ducks</h2>
first.innerHTML
"shop"
<html>
<body>
<h2 id="shop">Don's Rubber Ducks</h2>
<p>Best ducks in town</p>
<script>
var first = document.getElementById("shop");
var second = first.innerHTML;
</script>
</body>
</html>]]>second
contains the value "Don's Rubber Ducks"
.