Call a function: Difference between revisions
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// Calling a function that requires no arguments
ModuleA ' introduce a namespace can have modules/functions/subs, anything inside, and threads.
Call FunctionA() ' introduce a namespace can have modules/functions/subs, anything inside.
Call LambdaA() ' introduce a namespace can have modules/functions/subs, anything inside.
SubAlfa() ' subroutine this has the same scope as the caller, we can use Local statement to shadow variables/arrays
Print @Simple() ' simple function this has the same scope as the caller, we can use Local statement to shadow variables/arrays
Gosub labelA ' Statement Return used to return from a gosub, no arguments and no local statement used, the code is like any other code in the module/function/lambda scope. No jump out of scope allowed.
Gosub 10020 ' Statement Return used to return from a gosub,, no arguments and no local statement used, the code is like any other code in the module/function/lambda scope. No jump out of scope allowed.
// Calling a function with a fixed number of arguments
ModuleA 100
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Print (lambda (x,y)->{=x**y}(2,3))*8=64
// Obtaining the return value of a function
A%=FunctionA%() ' integer part from any numeric type. Also A% if get decimals convert to integer using school rounding (0.5, so 3.5 is 4, 2.5 is 3)
A=FunctionA() ' numeric or object
A$=FunctionA$() ' string or object which return string
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Cube=A(3) : Square=A(2)
Print Cube(2)=8, Square(2)=4
OOP: Functions/Modules can be members of objects.
Objects may have a name (they live until code get out of scope)
Objects may don't have a name but one or more pointers, (they live until counting references are zero)
ObjectA.moduleA is a call to an object method (a module)
pointerA=>moduleA is a call to an object by a pointer
An object may return values, and may accept parameters too. Also objects if they didn't return values other than a copy of them can be use operators defined as object functions.
Objects may have events and fire them using Call Event "simpleevent", param1, param2...
Functions and lambda (not simple functions), and object functions can be passed by reference as parameters.
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