>When you see things like < T > in C#, it's there for a good reason. It's called a generic and it makes your code better...and easier. For example, if you have regular collection, there is nothing in the language that forces you to store one particular datatype in the collection. Now, if you do a collection< string>, then the compiler forces all items stored in the collection to be of type string. If stops you from making errors.
>
>You're going to have to learn symbols because your only options are XAML or HTML or Java. Pick one and suck it up and learn how to use it.

Thank you, you anwered all secondary questions... :)

Where's the big answer? C# or JS? Xamarin or Cordova? I know you're good in .NET and you like learn.