@ { and @* what are these doing? I have never seen this in code before

Hi Codecademy Fam,

I am working on some break and fix projects at work. I am seeing the @ symbol before the { symbol and also I see the @* symbols before the tag.

What is the @ and @* doing here?

See the code below.
@{
string cndUrl = “https://d16mlsnlscorep.cloudfront.net/prod”;

}
@*<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>*@
@*<script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha384-tsQFqpEReu7ZLhBV2VZlAu7zcOV+rXbYlF2cqB8txI/8aZajjp4Bqd+V6D5IgvKT" crossorigin="anonymous">
    </script>*@
@*<script src="~/js/Layout/jTimeout.min.js"></script>*@
<script src="~/js/Layout/JqueryLibrary.js"></script>
@*<script src="https://code.jquery.com/jquery-2.2.4.js"
    integrity="sha256-iT6Q9iMJYuQiMWNd9lDyBUStIq/8PuOW33aOqmvFpqI="
    crossorigin="anonymous"></script>*@
<script src="https://github.com/inexorabletash/polyfill/blob/master/typedarray.js"></script>
@*<script src="https://code.jquery.com/jquery-migrate-3.1.0.js"></script>*@
@*<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>*@
@*<script src="~/js/CustomTimeOut.js"></script>*@