== Resources

=== Documentation

* https://learn.microsoft.com/en-us/dotnet/api/system.string.contains[String.Contains Method]
* https://learn.microsoft.com/en-us/dotnet/api/system.string.indexofany[String.IndexOfAny Method]
* https://learn.microsoft.com/en-us/dotnet/api/system.string.lastindexof[String.LastIndexOf Method]
* https://learn.microsoft.com/en-us/dotnet/api/system.string.lastindexofany[String.LastIndexOfAny Method]