Brightsign BrightScript 2 Reference Guide Instrukcja Użytkownika Pobierz pdf (Strona 31)

 Dynamic

In addition to the above types, the return type can be:

 Void

Parameters can have default values and expressions.

For example:

Function cat(a, b)

Return a+b „a, b could be numbers or strings

End Function

Function five() As Integer

Return 5

End function

Function add(a As Integer, b As Integer) As Integer

Return a+b

End function

Function add2(a As Integer, b=5 as Integer) As Integer

Return a+b

End Function

Function add3(a As Integer, b=a+5 as Integer) As Integer

Return a+b

End Function

Functions have their own scope.

The statement “Sub” can be used instead of “function” as a shortcut to a function of Void

return Type.

If a function is called from an associative array, then a local variable “m” is set to the

AssociatiaveArray that the function is stored in.

For example:

sub main()

obj={

add: add

a: 5

b: 10

}

obj.add()

print obj.result

end sub

function add() As void

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Brightsign BrightScript 2 Reference Guide Instrukcja Użytkownika Strona 31