VBA Part - 17 - Variables, Data Types, Option Explicit, ByVal, ByRef, Variable Scopes, VBA Constant

Published: 09 September 2022
on channel: Learn On ! ! !...
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Variables, Data Types, Option Explicit, ByVal, ByRef, Scope of Variables, ByVal and ByRef difference, Passing argument by ByRef in VBA, What are variables, what are data types, how to use variables, examples of variables, Scope of variables, Global Variable, Public Variable, Private variable,
How to declare Public variable, and Private variables.
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Boolean, Byte, Integer, Long, Currency, Single, Double, Date, String (for variable-length strings), String * length (for fixed-length strings), Object, or Variant. If you don't specify a data type, the Variant data type is assigned by default
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Implicitly: Below is an example of a variable declared Implicitly. Example: -
label=guru
volume=4
Explicitly: Below is an example of variable declared Explicitly. You can use “Dim” keyword in syntax. Example: -
Dim Num As Integer
Dim password As String
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Constant is like a variable, but you cannot modify it. To declare VBA constants, you can use keyword Const.
There are two types of constant,
Built-in or intrinsic provided by the application.
Symbolic or user defined
You can either specify the scope as private by default or public. For example, Public Const DaysInYear=365 or Private Const Workdays=250


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