Const Statement

Defines one or more identifiers as constants.

A constant is a variable that helps to improve the readability of a program. Constants are not defined as a specific type of variable, but rather are used as placeholders in the code. You can only define a constant once and it cannot be modified.

Const syntax [Global|Private|Public] Const name = expression[, ...]

name: Any identifier that follows the standard variable naming conventions. expression: Any literal expression. The data type must be omitted. When a library gets loaded in memory, %PRODUCTNAME Basic converts the program code internally so that each time a constant is used, the defined expression replaces it.

Scope

By default constants are defined as private in modules and routines. Constants can be made public or global in order to be used from all modules, from all Basic libraries. Global, Private and Public specifiers can only be used for module constants.

Const EARTH = "♁" ' module scope Private Const MOON = "☾" ' module scope Public Const VENUS="♀", MARS="♂" ' general scope Global Const SUN = "☉", STAR = "☆" ' general scope Sub ExampleConst Const SUN = 3 * 1.456 / 56 ' SUN is local MsgBox SUN,, MOON ' SUN global constant is unchanged Const Pgm = "Program", Var = 1.00 MsgBox Pgm & " " & Var, , VENUS &" and "& MARS End Sub

Enum statement Type statement