how to link a .js file in html code example
Example 1: include script in html
<script type="text/javascript" src="/path/to/script.js"></script>
Example 2: link javascript to html
<script src="index.js"> </script>
Example 3: how to link javascript to html
<script src="PathToYourFile.js"> </script>
Example 4: how to link javascript to html
<script src = "index.js"></script>
Example 5: call js script in html
<script src="file1.js" type="text/javascript"></script>
<script src="file2.js" type="text/javascript"></script>
Example 6: link javascript file to html
<script type="text/javascript" src="path-to-javascript-file.js"></script>