[Javascript] Doubly-indirected function declaration

[David Lovering]

That addresses the dynamic table issues, but unfortunately that is the one
portion of the problem I've gotten whacked.

Let me recapitulate --

     function yada-yada(blah, time) {
       stuff_happens_here;
    }

    myObject.onclick = function anonymous(){yada-yada(myBlah, Now)}

Obviously "Now" is the time at which the code is loaded -- and NOT when the
click event takes place.  How do I
modify the code in such a fashion that the snapshot values "myBlah" and
"Now" get put into the onclick definition, rather than
whatever conditions prevail at the time of the click event?

-- Dave Lovering

----- Original Message ----- 
From: "Roland Neilands" <rneilands at pulsemining.com.au>
To: "[JavaScript List]" <javascript at LaTech.edu>
Sent: Wednesday, August 06, 2003 5:29 PM
Subject: RE: [Javascript] Doubly-indirected function declaration


> David,
>
> Best example I could find to do this:
>
http://www.faqchest.com/msdn/IE-HTML/script-99/script-9908/script99081806_02
> 551.html
>
> Needs some tweaking, but sounds like your problem.
>
> Cheers,
> Roland
>
> > -----Original Message-----
> > From: javascript-bounces at LaTech.edu
> > [mailto:javascript-bounces at LaTech.edu]On Behalf Of David Lovering
> > Sent: Thursday, 7 August 2003 9:47 AM
> > To: [JavaScript List]
> > Subject: [Javascript] Doubly-indirected function declaration
> >
> >
> >
> > I've got something of a teaser -- I'm building a hot-link list which
> > connects to a single function with parameters which are determined at
> > build-time (and will vary wildly from job-to-job, day-to-day, etc.).  To
> > visually organize these babies I'm inserting the hotlinks inside a
table.
> > Rather than try to use static HTML to "guess" magically what values
should
> > be shipped to each function invocation cited by the hotlink, I'm
> > attempting instead to use the createElement process to insert a
> > reference to
> > an on-click handler at each point, for example
> >
> >         for (var i=0; i<maxVal; i++) {
> >             blah-blah-blah
> >
> >             var paramlist = "query_parent.php?name=" + formName + .....
+
> > "&type=table";
> >
> >             blah-blah-blah
> >
> >             function launchquery(paramlist) {
> >                 var win =
> > window.open(paramlist,"","titlebar=no,menubar=yes,location=no,stat
> > us=no,link
> > s=no");
> >             }
> >
> >             blah-blah-blah
> >
> >             newRow = myDoc.createElement("TR");
> >             newRow.style.cursor = "hand";
> >             myTd = myDoc.createElement("TD");
> >             myTd.innerHTML = "yada-yada";
> >             myTd.onclick = function anonymous(){launchquery(paramlist)}
> >             newRow.appendChild(myTd);
> >             topRow.appendChild(newRow);
> >         }
> >
> > I don't need to go into the details of how topRow is defined -- suffice
to
> > say, it is the row below which the insertion is to take place.
> >
> > The PROBLEM (!!!) is that the interior of the call-handler isn't defined
> > until the event which invokes it, by which time the loop has run
> > its course
> > and the value(s) which get handled by launchquery are the last one(s)
> > defined -- NOT the ones which are defined at build time.  This sucks.
> >
> > I need a comparable method which will take the values defined at
> > load-time,
> > and stuff them into the invocation, and then leave them unaltered.
> >
> > Any ideas?  I've tried all sorts of variations on eval, exec, etc., and
so
> > far there is no joy in Mudville.
> >
> > -- Dave Lovering
> >
> >
> > _______________________________________________
> > Javascript mailing list
> > Javascript at LaTech.edu
> > https://lists.LaTech.edu/mailman/listinfo/javascript
> >
>
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