Also properties are made via object.de<http://object.de>fineproperty. that may
affect hasownproperty. I don't think there is a way around that.
Hasownproperty was discouraged in ActionScript for similar reasons, Iirc.
Sent from my LG G3, an AT&T 4G LTE smartphone
------ Original message------
From: Carlos Rovira
Date: Sat, Jan 7, 2017 9:21 AM
To: dev@flex.apache.org;
Subject:Re: [FlexJS] value.hasOwnProperty not working, maybe a bug
Hi Josh,
many thanks, your workaround works, but it's a shame that "hasOwnProperty"
can't be used and does not be reliable :(
Thanks!
:)
2017-01-07 17:28 GMT+01:00 Josh Tynjala <joshtynj...@gmail.com>:
> Are you testing a release build? Remember that Closure compiler renames
> member variables, so using a string to check if they exist won't work.
>
> It can be frustrating, I know. To this day, I still wish that this drastic
> renaming with Closure hadn't been the default we chose. It breaks a number
> of common things like this.
>
> You may be able to do something like this instead, I think:
>
> If(value.label !== undefined)
>
> JavaScript generally won't throw an error when you try to access a property
> that doesn't exist because all JS objects are dynamic by default.
>
> - Josh
>
> On Jan 7, 2017 5:02 AM, "Carlos Rovira" <carlosrov...@apache.org> wrote:
>
> > Hi,
> >
> > I have this code in a Item Renderer:
> >
> > override public function set data(value:Object):void
> > {
> > super.data = value;
> >
> > if(value == null) return;
> >
> > /*if(value.hasOwnProperty('label')) {
> > label = String(value.label);
> > } else {
> > label = String(value);
> > }*/
> > label = String(value.label);
> >
> > /*if(value.hasOwnProperty('href')) {
> > href = String(value.href);
> > }*/
> > href = String(value.href);
> >
> > COMPILE::JS
> > {
> > if(textNode != null)
> > {
> > textNode.nodeValue = label;
> > }
> > }
> > }
> >
> > The commented code is not working. So I committed the line just below to
> > get it working for now.
> >
> > I'm passing typed object in the dataProvider :
> >
> > package vos
> > {
> > public class NavigationLinkVO
> > {
> > [Bindable]
> > public var label:String;
> > [Bindable]
> > public var href:String;
> >
> > public function NavigationLinkVO(label:String, href:String)
> > {
> > this.label = label;
> > this.href = href;
> > }
> > }
> > }
> >
> > And the dataProvider is:
> >
> > private var _mainNavigation:Array = [
> > new NavigationLinkVO("About", "
> > https://getmdl.io/index.html
> > "),
> > new NavigationLinkVO("Getting Started", "
> > https://getmdl.io/started/index.html";),
> > new NavigationLinkVO("Components", "
> > https://getmdl.io/components/index.html";),
> > new NavigationLinkVO("Customize", "
> > https://getmdl.io/customize/index.html";)
> > ];
> >
> > So, "label" and "href" are properties in the object, so why
> > "hasOwnProperty" is not working? is a bug?
> >
> > Thanks
> >
> > --
> > Carlos Rovira
> > http://about.me/carlosrovira
> >
>
--
Carlos Rovira
Director General
M: +34 607 22 60 05
http://www.codeoscopic.com
http://www.avant2.es
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