The array accessor [] does not quite duplicate what eval() used to. From my recollection you could actually run code with eval, which of course is impossible to do with []. I know there's a way to do code injection in AS3, but I don't remember the tecnique offhand.
The interesting thing about [] of course is that AS3 can do two-dimensional "arrays," and you can "chain" two array accessors together to make both the object and its property dynamic, like so: this.someInstance.someProperty == this["myObject"]["daProp"] Which makes things very interesting. Of course this only works if the property exists or the class is dynamic. A for loop and the [] syntax is much lower level and much more efficient than a repeater, but of course a repeater is bindable and has other useful stuff. _______________________________________________________________ Joseph Balderson, Developer | http://joeflash.ca | 705-466-6345 Josh McDonald wrote: > No worries, the equivalent of > > eval("movie_number_" + idNumber); > > would be: > > this["movie_number_" + idNumber]; > > To explain, in actionscript 3 (and in Javascript), these two references > are equivalent: > > this.someField = true; > this["someField"] = true; > > trace("the value is " + anObject.button7); > trace("the value is " + anObject["button7"]); > > Notice the fact that it's a string. You can also use numbers (this is > how arrays work), and other objects, but with objects the runtime simply > calls .toString() and then goes ahead with the string, IIRC. > > -Josh > > On Thu, Jun 19, 2008 at 9:20 PM, David Pariente <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Thnx for the psicological help :) > > Tecnically i come from AS1 and AS2 where i used to create multiple > copies of movieclips, and created with a name as: > > eval("movie_number_"+idnumber); > > maybe i should need an easy example of how to create multiple > objects dinamically, and most important, how to access them later. > > Thnx, u guys are kind ;) > > ----- Mensaje original ---- > De: Josh McDonald <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > Para: [email protected] <mailto:[email protected]> > Enviado: martes, 17 de junio, 2008 0:50:17 > Asunto: Re: [flexcoders] Re: string to actual actionscript code? > > Gordon, > > I can live without eval() and associated evilness, but I'd sell my > left testicle for the ability to mark a Proxy as extending or > implementing various classes or interfaces. > > Mario - As for this sort of pseudo-eval that theyou're after, you > could definitely cook up something similar to that without *too > much* work, but I don't think it's the correct solution to whatever > the actual root problem is. We need more information as to context > to be more help :) > > -Josh > > On Tue, Jun 17, 2008 at 4:27 AM, Gordon Smith <[EMAIL PROTECTED] com > <mailto:[EMAIL PROTECTED]>> wrote: > > Why are you lost without eval()? What would you use it to do? > Many developers think they need it when they really don't; there > are often other ways to accomplish what they're trying to do. > > > > Gordon Smith > > Adobe Flex SDK Team > > > > > ------------------------------------------------------------------------ > > *From:* [EMAIL PROTECTED] ups.com > <mailto:[email protected]> [mailto:[EMAIL PROTECTED] > ups.com <mailto:[email protected]>] *On Behalf Of > *David Pariente > > *Sent:* Monday, June 16, 2008 7:35 AM > *To:* [EMAIL PROTECTED] ups.com > <mailto:[email protected]> > > *Subject:* Re: [flexcoders] Re: string to actual actionscript code? > > > > They answer u about eval() cause that was what eval() was for. I > used it so often in AS1 and AS2. Lost now in AS3 without it :( > > ----- Mensaje original ---- > De: mariovandeneynde <mariovandeneynde@ yahoo.com > <mailto:[EMAIL PROTECTED]>> > Para: [EMAIL PROTECTED] ups.com > <mailto:[email protected]> > > Enviado: lunes, 16 de junio, 2008 12:08:26 > Asunto: [flexcoders] Re: string to actual actionscript code? > > No, I'm just wondering if there is a way to convert a string to > actual > actionscriptcode. .. > > --- In [EMAIL PROTECTED] ups.com > <mailto:flexcoders%40yahoogroups.com>, "Michael Schmalle" > <teoti.graphix@ ...> wrote: > > > > Hi, > > > > There is no eval() in actionscript if that is what you are > wondering. > > > > Mike > > > > On Mon, Jun 16, 2008 at 5:33 AM, mariovandeneynde < > > mariovandeneynde@ ...> wrote: > > > > > Greetings, > > > > > > I was wondering if the following situation would be possible: > > > > > > imagine having a string like > > > > > > var query:String = "Object.property. toString( ) == > somevalue.toString( )"; > > > > > > and that the string somehow could be converted to actual > actionscript > > > code... > > > > > > if(query){ > > > trace("your actionscriptquery worked"); > > > } > > > else{ > > > trace("your actionscriptquery did not worked"); > > > } > > > > > > > > > > > > > > > > > -- > > Teoti Graphix, LLC > > http://www.teotigra phix.com <http://www.teotigraphix.com> > > > > Teoti Graphix Blog > > http://www.blog. teotigraphix. com > <http://www.blog.teotigraphix.com> > > > > You can find more by solving the problem then by 'asking the > question'. > > > > > > > ------------------------------------------------------------------------ > > > Enviado desde Correo Yahoo! > > <http://us.rd.yahoo.com/mailuk/taglines/isp/control/*http:/us.rd.yahoo.com/evt=52431/*http:/es.docs.yahoo.com/mail/overview/index.html> > La bandeja de entrada más inteligente. > > > > > -- > "Therefore, send not to know For whom the bell tolls. It tolls for > thee." > > :: Josh 'G-Funk' McDonald > :: 0437 221 380 :: [EMAIL PROTECTED] com <mailto:[EMAIL PROTECTED]> > > ------------------------------------------------------------------------ > > Enviado desde Correo Yahoo! > > <http://us.rd.yahoo.com/mailuk/taglines/isp/control/*http://us.rd.yahoo.com/evt=52431/*http://es.docs.yahoo.com/mail/overview/index.html> > La bandeja de entrada más inteligente. > > > > > -- > "Therefore, send not to know For whom the bell tolls. It tolls for thee." > > :: Josh 'G-Funk' McDonald > :: 0437 221 380 :: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
