how to link to js file in html code example
Example 1: import js in html
<script type="text/javascript" src="yourfile.js"></script>
Example 2: how to link js to html
<script src="Your-JavaScript-File.js"></script> <!--If JS file is in same folder with HTML file-->
Example 3: how to link javascript to html
<script src = "index.js"></script>