Display a JavaScript variable in an HTML page
In this tutorial, we are going to see how to display a JavaScript variable in an HTML page by using two method, the first one is using the document.write() method and the second is using the innerHTML property.
Example 1: Using document.write()
<html>
<head>
<script type="text/javascript">
var sum = 1 + 2;
</script>
</head>
<body>
<h1>
The sum is
<script type="text/javascript">
document.write(sum)
</script>
</h1>
</body>
</html>
Output:
The sum is 3
Example 2: Using the innerHTML property
<html>
<body>
<h1>
The sum is <span id="sum"></span>
</h1>
</body>
<script type="text/javascript">
var sum = 1 + 2;
document.getElementById("sum").innerHTML=sum;
</script>
</html>
Output:
The sum is 3
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