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JavaScript File Use
There are two ways to use JavaScript file
1- Internal use of javascript
2-External use of javascript
1 - Internal use of javascript mean javascript code write inside html file .
Example 01
<body>
<h2> This is heading tag </h2>
<p> This is paragraph tag</p>
<!---*************** Use internal javascript file *******--->
<script>
alert(" Internal javascript ");
console.log("hey really it is working");
</script>
</body>
Try above code
2 - External javascript file
first create a javascript.js file then attached with script tag
<DOCTYPE html>
<head>
<title> add external javascript file </title>
<script src="javascript.js"></script>
</head>
<body>
<h2> Use external javascript file </h2>
<p> You can also attached before the end of body tag</p>
</body>
</html>
Try above code