VBS TUTORIAL: VBScript statement-option Explicit statement _vbs

Option Explicit Statement

Forces an explicit declaration of all variables in the script.

Option Explicit

Description

If you use Option Explicit, the statement must appear before any other statements in the script.

When you use the Option Explicit statement, you must explicitly declare all variables using Dim,Private, public, or ReDim statements. If you try to use an undeclared variable name, an error occurs.

Tip You can use Option Explicit to avoid misspelled variable names that already exist. Use this statement to avoid confusion for variables that are not scoped.

The following example illustrates how to use the Option Explicit statement:

Option Explicit ' Forces a declaration variable to be displayed. Dim MyVar          'declare a variable. The MyInt = 10         ' variable was not declared to produce an error. MyVar = 10         'declaring a variable does not produce an error.