how to add javascript alert in laravel code example

Example: alert laravel 7

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/limonte-sweetalert2/7.2.0/sweetalert2.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/limonte-sweetalert2/7.2.0/sweetalert2.all.min.js"></script>