Javascriptから外部URLのJavaScriptをinclude・requireを使って読み込む方法のメモです。
function dynamicallyLoadScript(url) {
var script = document.createElement("script");
script.src = url;
document.head.appendChild(script);
}
dynamicallyLoadScript('https://cdnjs.cloudflare.com/ajax/libs/mark.js/8.11.1/jquery.mark.es6.min.js')
参考
How do I include a JavaScript file in another JavaScript file? – Stack Overflow