Public Shared Sub ForEach(Of T) ( _
    array As T(), _
    action As Action(Of T) _
)

Dim array As T()
Dim action As Action(Of T)

Array.ForEach(array, action)

public static void ForEach<T>(
    T[] array,
    Action<T> action
)

public:
generic<typename T>
static void ForEach(
    array<T>^ array, 
    Action<T>^ action
)

J# admite el uso de APIs genéricas pero no admite la declaración de nuevas API.

JScript no admite el uso de métodos ni tipos genéricos.