Optional Arguments for functions?

[ragingdemonz]

With 2.3 having the new functions stuff how do i declare optional arguments? do i still have to use the argument[...] format like so?

function myfunction(argument[0],argument[1])
{

}

or can i just do something like

function myfunction(wx[0],wy[1]){

}

 

[chamaeleon]

With 2.3 having the new functions stuff how do i declare optional arguments? do i still have to use the argument[...] format like so?

Use argument_count and argument[] for the optional arguments.

function foo(a, b) {
    show_debug_message("a = " + string(a));
    show_debug_message("b = " + string(b));
    for (var i = 2; i < argument_count; i++) {
        show_debug_message("Optional arg " + string(i) + " = " + string(argument[i]));
    }
}

foo("abc", "def", "ghi", "jkl");

a = abc
b = def
Optional arg 2 = ghi
Optional arg 3 = jkl

 

[rytan451]

function foo(a, b, c) {
    if (is_undefined(a)) {
        show_debug_message("a = undefined");
    } else {
        show_debug_message("a = " + string(a));
    }
    
    if (is_undefined(b)) {
        show_debug_message("b = undefined");
    } else {
        show_debug_message("b = " + string(b));
    }

    if (is_undefined(b)) {
        show_debug_message("b = undefined");
    } else {
        show_debug_message("b = " + string(b));
    }
}


foo(1, 2);
// a = 1
// b = 2
// c = undefined

 

[Nidoking]

If you actually check c for undefined and use c instead of b twice...