空迴歸

 placeholderCopyFunction TestFunction() As TestClass
    Return Nothing
End Function

壞程式碼

 placeholderCopyTestFunction().TestMethod()

好的程式碼

 placeholderCopyDim x = TestFunction()
If x IsNot Nothing Then x.TestMethod()

Version = 14.0

空條件運算子

 placeholderCopyTestFunction()?.TestMethod()