html link external js code example
Example 1: link javascript to html
<script src="index.js"> </script>
Example 2: how to link javascript to html
<script src="PathToYourFile.js"> </script>
Example 3: include js in html
<html>
<head>
</head>
<body>
<script type="text/javascript" src=es4.js></script>
</body>
</html>
Example 4: how to add javascript in html
<script src="script.js"></script>