Parameter

Optional parameters are values passed to SUB and FUNCTION procedures. They are always enclosed in parenthesis inside the procedures.

Syntax

SUB SubName[(parameter [AS Type][, ...])]

FUNCTION FunctionName[(parameter [AS Type][, ...])]

CALL SubName[(parameter[, ...])]

SubName [parameter][, ...]

FunctionName[(parameter[, ...])]

Usage:

• Inside of sub-procedures, multiple parameters variables are separated by commas in a list and always enclosed inside of parenthesis.
• When CALL is used to call a SUB procedure all parameters must be enclosed inside parenthesis too.
• When just the procedure name is used to call a SUB, the parameters are listed after the name. Multiple parameters require commas.
• FUNCTION procedure parameters are always enclosed in parenthesis. Multiple parameters are separated by commas.
• Parameters can be literal values or variables when a SUB procedure is called or a FUNCTION procedure is referenced.
• To pass parameter variables by value to protect the value in a call, parenthesis can be placed around each variable name also.
• To pass arrays to a sub-procedure use empty brackets after the name or indicate the index in the call.

See also:

• SUB
• FUNCTION
• CALL

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