javascript link tag code example
Example 1: html link tag
<head>
<link rel="stylesheet" type="text/css" href="theme.css">
</head>
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