script src = js file code example
Example 1: include script in html
<script type="text/javascript" src="/path/to/script.js"></script>
Example 2: link javascript html
<script type="text/javascript" src="monscript.js"></script>
Example 3: import script html
<html>
<head>
<script type="text/javascript" src="/path/to/script.js"></script>
...