Call Js in one js file

.js

document.writeln('<script src="assets/js/bootstrap.bundle.min.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/meanmenu.min.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/ajaxchimp.min.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/form-validator.min.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/contact-form-script.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/owl.carousel.min.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/jquery-ui.min.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/magnific-popup.min.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/aos.js" type="text/javascript"></script>');
document.writeln('<script src="assets/js/tweenMax.min.js" type="text/javascript"></script>');


create plugins.js files then call only footer
<script src="assets/js/plugins.js"></script>