What is scope of variable in VBScript?

A variable’s scope is determined by where you declare it. When you declare a variable within a procedure, only code within that procedure can access or change the value of that variable. It has local scope and is a procedure-level variable.

What are VBScript constants?

Constant is a named memory location used to hold a value that CANNOT be changed during the script execution. If a user tries to change a Constant Value, the Script execution ends up with an error. Constants are declared the same way the variables are declared.

What is dim in VBS?

The Dim statement allows you to explicitly declare one or more new variables and to allocate storage (memory) space. While you do not have to use Dim to create new variables in VBScript, the wise programmer prefers to use Dim.

How do you declare a global variable in VBScript?

Variable scope in VBScript functions

1. Dim = Local scope if the variable name doesn’t already exist globally (in which case it reuses the global variable!)
2. Global = Forces creation of the variable in the Global scope.
3. Local = Forces creation of the variable in the Local/Function scope.

How do you declare a variable in VBScript?

Rules for Declaring Variables −

1. Variable Name must begin with an alphabet.
2. Variable names cannot exceed 255 characters.
3. Variables Should NOT contain a period (.)
4. Variable Names should be unique in the declared context.

Is nothing in VBScript?

VBScript – Nothing Keyword. Several object variables can refer to the same actual object. When Nothing is assigned to an object variable, that variable no longer refers to any actual object.

Is empty in VBScript?

The IsEmpty function returns a Boolean value that indicates whether a specified variable has been initialized or not. It returns true if the variable is uninitialized; otherwise, it returns False.