Code language

Hi all,
only an information, which is the language used in uipath? is the VB.NET?
Why it’s different between the blue prism VB.NET language?
For example the string concatenation is + in uipath and & in BP.
Thanks for the reply

only an information, which is the language used in uipath? is the VB.NET?

Both c# and vb.net

https://docs.microsoft.com/en-us/dotnet/visual-basic/programming-guide/language-features/operators-and-expressions/concatenation-operators

.net… vb.net and c#
Blue prism uses the “+” for other things and thus is interpreted differently