CompoundValueT Class

public class CompoundValue<T> : Collection<T?>
where T : struct, new()

Public Class CompoundValue(Of T As {Structure, New})
	Inherits Collection(Of T?)

generic<typename T>
where T : value class, gcnew()
public ref class CompoundValue : public Collection<Nullable<T>>

type CompoundValue<'T when 'T : struct, new()> = 
    class
        inherit Collection<Nullable<'T>>
    end

JavaScript does not support generic types or methods.