[Xerte] Accessing associative arrays via variable?

[Dave Burnett]

Well, I don't know what character was hiding in my version, but I just substituted my vars in your pasted code one at a time and and it worked.

I can move the block above or below each other and the undefined moves with it.

help_defs = new Object();
help_defs.Atomic = 'Roosters are atomic';
myVar='Atomic';
debug(help_defs[myVar]);

help_defs = new Object();
help_defs.Atomic = 'Roosters are atomic';
myVar='Atomic';
debug(help_defs[myVar]);
 

The upper one (my original) returns undefined.
The lower one (yours copied and pasted with my vars typed in) works fine. See any difference?
 
Ghosts in the machine.

Thanks Julian. It teaches me a lesson about AS.


Subject: RE: [Xerte] Accessing associative arrays via variable?
Date: Sun, 27 Dec 2009 22:46:43 +0000
From: Julian.Tenney at nottingham.ac.uk
To: xerte at lists.nottingham.ac.uk










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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