[Xerte] Accessing associative arrays via variable?

[Dave Burnett]

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)]) 


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