swal is not defined
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/sweetalert/1.1.3/sweetalert.min.css"> <script src="https://cdnjs.cloudflare.com/ajax/libs/sweetalert/1.1.3/sweetalert.min.js"></script> Run code snippet
Source: stackoverflow.com
swal is not defined
swal("HEY", "Message", "warning")
Source: stackoverflow.com