Function parameters

We already learned to create functions which accept a parameter and return values

FUNCTION GetInitial(Name : STRING) RETURNS STRING
  // Local variables in function
  DECLARE Initial : STRING

  Initial ← UCASE(Name[0])

  RETURN Initial
ENDFUNCTION

OUTPUT "Enter your first name: "
INPUT FirstName
FirstNameInitial ← GetInitial(FirstName)

OUTPUT "Your initial is: ", FirstNameInitial

Functions can accept multiple parameters

FUNCTION GetInitial(Name : STRING, ForceUppercase : BOOLEAN) RETURNS STRING
  DECLARE Initial : STRING

  IF ForceUppercase
    THEN
      Initial ← UCASE(Name[0])
    ELSE
      Initial ← Name[0]
  ENDIF

  RETURN Initial
ENDFUNCTION

OUTPUT "Enter your first name: "
INPUT FirstName
FirstNameInitial ← GetInitial(FirstName, FALSE)

OUTPUT "Your initial is: ", FirstNameInitial

Caution

Pass the parameters in the same order they are listed in the function declaration