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