Use the id attribute in HTML to add a unique identifier for an element.
You can try running the following code to implement the id attribute−
<html>
<body>
<h1>Tutorialspoint</h1>
<p id = "myid">We provide Tutorials!</p>
<button onclick = "display()">More...</button>
<script>
function display() {
document.getElementById("myid").innerHTML = "We provide learning videos as well";
}
</script>
</body>
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