[Xerte] Accessing associative arrays via variable?

[Dave Burnett]

Yes, as I discovered. :/
I was trying to make it easy on myself by passing a parameter which doubled as a link which doubled as a title which keyed the definition, etc.

I've gotten around it by using underscores for spaces and stripping the underscores where needed for display.


Subject: RE: [Xerte] Accessing associative arrays via variable?
Date: Wed, 30 Dec 2009 16:24:30 +0000
From: Julian.Tenney at nottingham.ac.uk
To: xerte at lists.nottingham.ac.uk










I wouldn't use spaces in names at all



From: xerte-bounces at lists.nottingham.ac.uk on behalf of Dave Burnett
Sent: Wed 30/12/2009 14:23
To: Xerte list
Subject: RE: [Xerte] Accessing associative arrays via variable?




For the archives, something that is probably obvious to OOP aware folks, but tripped me up good:

myObject = new Object();

myObject.My Property = "rooster";

debug(myObject.My Property); // gives "rooster"

debug(myObject["My Property"]); // gives undefined

No spaces in object properties allowed when using non dot syntax.



=====================================




b = new Object();
b.blah = 'value';
v='blah';
debug(b[v]); //works for me



From: xerte-bounces at lists.nottingham.ac.uk on behalf of Dave Burnett
Sent: Sun 27/12/2009 21:49
To: Xerte list
Subject: RE: [Xerte] Accessing associative arrays via variable?


help_defs = new Object();
helps_defs.Atomic = "Roosters are atomic";
debug(helps_defs.Atomic); // gives me "Roosters are atomic"


myVar = 'Atomic';
debug(help_defs[myVar]); // gives me undefined.





Subject: RE: [Xerte] Accessing associative arrays via variable?
Date: Sun, 27 Dec 2009 21:23:56 +0000
From: Julian.Tenney at nottingham.ac.uk
To: xerte at lists.nottingham.ac.uk





myVar = 'Atomic';
debug(help_defs[myVar]);



From: xerte-bounces at lists.nottingham.ac.uk on behalf of Dave Burnett
Sent: Sun 27/12/2009 18:05
To: Xerte list
Subject: [Xerte] Accessing associative arrays via variable?



help_defs = new Object();
helps_defs.Atomic = "Roosters are atomic";
debug(helps_defs.Atomic); // gives me "Roosters are atomic"

Can I sub a variable into the place of .Atomic in that last statement?

Sort of like in AW, to call a value from a property list using a variable for the property name I'd use:

Trace(my_prop_list[Symbol("a"^some_variable)]) 


Hotmail: Trusted email with Microsoft’s powerful SPAM protection. Sign up now. 


Hotmail: Powerful Free email with security by Microsoft. Get it now. 


Hotmail: Trusted email with Microsoft’s powerful SPAM protection. Sign up now. 


Hotmail: Free, trusted and rich email service. Get it now. 


Hotmail: Trusted email with powerful SPAM protection. Sign up now.  		 	   		  
_________________________________________________________________
Hotmail: Trusted email with Microsoft’s powerful SPAM protection.
http://clk.atdmt.com/GBL/go/177141664/direct/01/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nottingham.ac.uk/pipermail/xerte/attachments/20091230/34191d5a/attachment.html