what is swal in sweetalert code example

Example 1: Sweetalert

<script src="https://unpkg.com/sweetalert/dist/sweetalert.min.js"></script>
<script>swal("My title", "My description", "success");</script>

Example 2: sweet alert

<script src="https://unpkg.com/sweetalert/dist/sweetalert.min.js"></script>