What is the best way to clear an array of strings?

Question

What is the best way to clear an array of strings?

Answer 1

If you need to reinitialize with empty strings or other values not equal to Nothing/Null, you may get further using an extension method:

Option Strict On : Option Explicit On : Option Infer On
...
Public Delegate Sub ArrayForAllDelegate(Of T)(ByRef message As T)

Public Function ForAll(Of T)(ByRef self As T(), f As ArrayForAllDelegate(Of T)) As T()
    Dim i = 0
    While i < self.Length
        f(self(i))
        i += 1
    End While
    Return self
End Function

Then your initialization code:

Dim a = New String(3 - 1) {"a", "b", "c"}
...
a.ForAll(Sub(ByRef el) el = "") 'reinitialize the array with actual empty strings