Clear Statement:

The Clear statement resets a variable to Empty or an object reference to Nothing.

Clear variable
Example Usage:
Dim mystring, objCn

 ' clear a string and set it to empty or uninitialized...
mystring = "some string"
Clear mystring
 ' equivalent to the statement: mystring = Empty

 ' set an object reference to Nothing, freeing it from memory...
Set objCn = Server.CreateObject("ADODB.Connection")
Clear objCn
 ' equivalent to the statement: Set objCn = Nothing
ASP Source Code:
Private Sub Clear(byRef string)
	If IsObject(string) Then 
		Set string = Nothing
		string = Empty
	End If
End Sub