Zewnętrzne łączenie JavaScript w HTML
<script type="text/javascript" src="path-to-javascript-file.js"></script>
Aggressive Antelope
<script type="text/javascript" src="path-to-javascript-file.js"></script><script src = "index.js"></script><script src="name.js">
//put in your javascript here
</script> <script type="text/javascript" src=es4.js></script>