Writing into an HTML element using Javascript

JavaScript Overview of Javascript (Article) Overview of Javascript (Program)

358

Program:

<!DOCTYPE html>
<html>
<body>

<h2>Writing into an HTML element</h2>
<p>My First Paragraph.</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = 10 + 11;
</script>

</body>
</html>

Output:

21

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