Anthony Palomba

Actually I tried making firstobject and nextobj methods but MAX 

tells me that they are not functions. Any other ideas why this

Actually I tried making firstobject and nextobj methods but MAX 
tells me that they are not functions. Any other ideas why this
does not work?

re-javascript-patcher-firstobject-help-anybody

functions in javascript use parentheses to pass arguments to the 

function. however, even if you are not passing arguments to the 

function, you need to use an empty pair of parentheses. this tells 

the script that you are trying to call a function and not reference a 

property. in other words, change your code to this:

functions in javascript use parentheses to pass arguments to the  
function.  however, even if you are not passing arguments to the  
function, you need to use an empty pair of parentheses.  this tells  
the script that you are trying to call a function and not reference a  
property.  in other words, change your code to this:

obj = this.patcher.firstobject();
while(obj)
{
outlet(0, obj.varname);
obj = obj.nextobj();
}

On Dec 20, 2005, at 1:56 PM, apalomba@austin.rr.com wrote:

> Actually I tried making firstobject and nextobj methods but MAX

> tells me that they are not functions. Any other ideas why this

They are both *properties*, but please notice your typo. It is not 

"nextobj", but "nextobject" as documented in the latest 

JavascriptInMax.pdf. The following code works fine for me under OS X 

> Actually I tried making firstobject and nextobj methods but MAX
> tells me that they are not functions. Any other ideas why this
> does not work?

They are both *properties*, but please notice your typo. It is not  
"nextobj", but "nextobject" as documented in the latest  
JavascriptInMax.pdf. The following code works fine for me under OS X  
10.4.3, and MaxMSP 4.5.6.

var obj = this.patcher.firstobject;
while(obj)
{
	outlet(0, obj.varname);
	obj = obj.nextobject;
}

Yes, I know. When I take the code just as you have it 

and run it Max, Max says that firstobject and nextobj

Yes, I know. When I take the code just as you have it 
and run it Max, Max says that firstobject and nextobj
are not functions.

You mean Max, does not have any kind of AI 

to catch this error?! I am very disappointed in you Cycling74.

Ooops, he he he, thats what I meant.
You mean Max, does not have any kind of AI 
to catch this error?! I am very disappointed in you Cycling74.

Okay so I am still having trouble with nextobject. When ever

I run the following javascript, Max locks up.

It looks like the call to nextobject is causing the problem.

Does anyone know what might be the problem?

Okay so I am still having trouble with nextobject. When ever
I run the following javascript, Max locks up.

var  obj = this.patcher.firstobject;
 while(obj != null)
 { 
      outlet(0, "varname = " + obj.varname);
      obj = obj.nextobject;
 }

It looks like the call to nextobject is causing the problem.
Does anyone know what might be the problem?

have you tried joshua's suggestion which you quoted?

perhaps the nextobject property for the last object isn't null. just

try "while(obj)". this would explain max locking up, because you would

anthony,
  have you tried joshua's suggestion which you quoted?
  perhaps the nextobject property for the last object isn't null.  just
try "while(obj)". this would explain max locking up, because you would
be stuck in an endless loop.
-jim


I tried while(obj) as well, it still locks up. I don't think it is in

an endless loop because I should at least be seeing the output

I tried while(obj) as well, it still locks up. I don't think it is in
an endless loop because I should at least be seeing the output
"varname = "

On around Jan 25, 2006, at 2:06, jim altieri said something like:

are identical statements. The only difference is programming style (ie, 

lazy typing). If your Javascript/Java/C/C++ system doesn't generate 

identical code for both conditionals, you've got a buggy 

That said, Anthony's code looks fine and I don't immediately see why it 

should lock up. Stupid question: are you very sure the syntax to the 

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On around Jan 25, 2006, at 2:06, jim altieri said something like:
> just
> try "while(obj)".

are identical statements. The only difference is programming style (ie, 
lazy typing). If your Javascript/Java/C/C++ system doesn't generate 
identical code for both conditionals, you've got a buggy 
compiler/interpreter.

That said, Anthony's code looks fine and I don't immediately see why it 
should lock up. Stupid question: are you very sure the syntax to the 
outlet() call is OK?

Well, I'd expect my Java compiler to reject both of them: the first 

unless obj is a boolean (or, under Java 1.5, a Boolean object with 

auto-unboxing) and the second unless NULL is defined and is 

compatible with the type of obj, since Java uses the lower-case form.

nick rothwell -- composition, systems, performance -- 

Well, I'd expect my Java compiler to reject both of them: the first  
unless obj is a boolean (or, under Java 1.5, a Boolean object with  
auto-unboxing) and the second unless NULL is defined and is  
compatible with the type of obj, since Java uses the lower-case form.

   nick rothwell -- composition, systems, performance -- http:// 
www.cassiel.com


On around Jan 25, 2006, at 11:53, Nick Rothwell said something like:

> Well, I'd expect my Java compiler to reject both of them:

On around Jan 25, 2006, at 11:53, Nick Rothwell said something like:
> Well, I'd expect my Java compiler to reject both of them:

Well I finally got it to work, this is what it looks like:

        nextobj = obj.nextobject;

        if(obj == nextobj )    

            obj = nextobj ;    

        outlet(0, "varname = " + obj.varname);

But I don't understand why this does not work:

    var obj = this.patcher.firstobject;

It would appear that there is a circular reference in 

        var obj = this.patcher.firstobject;
	while(obj != null)
	{	
		nextobj = obj.nextobject;
		if(obj == nextobj )	
			break;
		else	
			obj = nextobj ;	
		outlet(0, "varname = " + obj.varname);
	}

	var obj = this.patcher.firstobject;
	while(obj != null)
	{	
		outlet(0, "varname = " + obj.varname);
		obj = obj.nextobject;
	}

It would appear that there is a circular reference in 
the object list.

Re: javascript patcher.firstobject help... anybody...