how to use .js with scripts code example
Example 1: how to enter javascript in html
<script type="text/javascript">
alert("This alert box was called with the onload event");
</script>
Example 2: How to add js file to a site through url
var jsFile = document.createElement("script");
jsFile.src = "homePage.js"; // it can be path also "{themes('/scripts/homePage.js')}"
document.body.appendChild(jsFile); //append it as src to body