Creating a function with optional arguments

[ptolemy]

How can I create a function that takes optional arguments?

-ptolemy

[Flawless_koder]

All arguments are optional automatically.

function name(arguments){}

Flawless

[ptolemy]

Don't know how I never thought of that one...

Thanks,


-ptolemy

[Flawless_koder]

Flawless

[Arielladog]

Hey,

Just remember that inside a function there is an array called "arguments" that you can use to access all arguments:

function myFunc(){
for(i=0;i<arguments.length;i++){
alert("arguments["+i+"] = " + arguments[i]);
}
}

myFunc("this",1,"IS",4,'U');

aDog

[Flawless_koder]

Very true - except i rarely find an occasion that i need that.

However i VERY rarely have to pass arguments around.

The closest i do is to pass (event) around for Netscape
browsers. ( which don't recieve event properly )

Flawless

[Arielladog]

One way around that is to just go:

function handleEvents(){
event = arguments.callee.caller.arguments[0];
}

http://javascriptkit.com/dhtmltutors/nsevents.shtml

aDog

[Flawless_koder]

Granted - but not really all that worthwhile - is it...
Especially when the callee property doesn't always work
the way you want it to in all browsers.

You're far better off calling the function with handleEvent(event) and delcaring it in the function declaration just to be safe!

Flawless