VBScript Statements

Using VBScript Statements

• 07/12/2006
• 2 minutes to read

Data types aren’t the only things missing. VBScript also lacks several statements. It’s missing all of the statements related to file I/O, such as Open, Close, Read, and Input. Other statements that are not available are Write. GoSub, On GoSub, On GoTo, On Error, and DoEvents. Table 13.5 contains a complete list of all of the available VBScript statements.

Table 13.5: Statements Supported in VBScript

Statement	Description
Call	Invokes a subroutine
Const	Declares a constant value
Dim	Declares variables
Do/Loop	Executes a loop until a condition or while a condition is True
Erase	Reinitializes the contents of a fixed-size array and frees all of the memory allocated to a variable-sized array
For/Next	Executes a loop while iterating a variable
For Each/Next	Executes a loop while iterating through a collection of objects
Function/End Function	Declares a routine that will return a value
If/Then/Else/End If	Conditionally executes one set of statements or another
On Error	Takes the specified action if an error condition arises
Option Explicit	Requires that all variables must be declared before their use
Private	Declares private variables
Public	Declares public variables
Randomize	Initializes the random-number generator
ReDim	Changes the size of an array
Select Case/End Select	Chooses a single condition from a list of possible conditions
Set	Assigns a reference to an object or creates a new object
Sub	Declares a subroutine
While/Wend	Executes a loop while a condition is True