Forums > Javascript

Simple but head-aching connect() issue, urgent!

April 21, 2006 | 3:15 pm

Hi everyone

Sorry for troubling you with such simple questions, but I spend hours
on the problem and I couldn’t find any answers on the mailing-list or
in the JavaScriptInMaxPDF. Please!

I create a gate object in js, like this:
var theGate = this.patcher.newdefault(100 , 100, "gate");

Now, I want to connect it to an dac~ obect i created in Max and named
(via. name…) "theDac", and I guess Im supposed to do like this:
this.patcher.connect(theGate, 0, theDac, 0);

I get the error "Javascript ReferenceError: theDac is not defined".


~Carl Email

April 21, 2006 | 5:45 pm

what you set in Max-land is the "varname" property, and what the
function "connect" uses is a javascript representation of a max
object, very different.

you need this code (or something similar) to get the js max object
associated with the varname "theDac":

var jsDac = this.patcher.getnamed("theDac");
this.patcher.connect(theGate, 0, jsDac, 0);


April 22, 2006 | 7:30 am

Thank you Evan

I tried getnamed() like you propose, but then Max crashes when I
If I ask for the content of jsDac by post(jsDac) I get the reply
"jsobject 0".
Any ideas?

~Carl Email

April 22, 2006 | 8:36 am

If you post an example patch and JS file it will be much easier to help.


April 22, 2006 | 8:41 am

Is your "theDac" in the same patcher level as the js object? It should work
then. Maybe try a different name? If you don’t want max to crash do
something like this:

post("can’t find dac!n)"

Deleting or connecting objects that don’t exist leads to crashes in js, so
you have to always check for yourself. I’d like to see this get changed to a
friendly error message one day..:-). thispatcher scripts don’t crash on
these things.

hth, Thijs

April 22, 2006 | 9:23 am

April 22, 2006 | 9:41 am

If you want help with your old patch explain what’s bugging you or send the
patch and I’ll have a look. Otherwise good luck.

Best, Thijs

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Forums > Javascript