Довідка LibreOfficeDev 25.8
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.
   
[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, LibreOfficeDev Basic converts the program code internally so that each time a constant is used, the defined expression replaces it.
За промовчанням константи визначаються як особисті в модулях і підпрограмах. Константи можна зробити загальнодоступними або глобальними, щоб використовувати їх з усіх модулів, із усіх бібліотек Basic.
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