Импорт JS в HTML
<script type="text/javascript" src="yourfile.js"></script>
SteDeus
<script type="text/javascript" src="yourfile.js"></script><script type="text/javascript" src="/path/to/script.js"></script><script src="index.js"></script> <script type="text/javascript"
src="file.js">
</script> <script type="text/javascript" src="path-to-javascript-file.js"></script><script src = "index.js"></script>