Option Explicit Statement
Specifies that every variable in the program code must be explicitly declared with the Dim statement.
Syntax:
Option Explicit
Parameters:
This statement must be added before the executable program code in a module.
Example:
Option Explicit
Sub ExampleExplicit
Dim sVar As String
sVar = "Las Vegas"
For i% = 1 To 10 ' This results in a run-time error
Rem
Next i%
End Sub