VB.NET 10 : Nullable Optional Parameter

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You can create method with optional parameter and also make them Nullable.

Optional with default value

Sub Test(ByVal _name As String, ByVal _email As String, Optional ByVal _age As Integer = 30)

Optional and Nullable

Sub Test(ByVal _name As String, ByVal _email As String, Optional ByVal _age As Integer? = Nothing)

Similarly you also may initialize the collection like Dictionary.

Namoskar!!!