I recently went this course in TextModel. By default, the text property was undefined which propagated to the view when it was never set. I changed it to 'private var _text:String = “”;' to set the default to an empty string.
Harbs > On Feb 16, 2017, at 8:58 PM, Carlos Rovira <carlos.rov...@codeoscopic.com> > wrote: > > Hi, I was thinking the same as Om. Only setting a default would to the trick > > thanks > > 2017-02-16 19:56 GMT+01:00 OmPrakash Muppirala <bigosma...@gmail.com>: > >> On Thu, Feb 16, 2017 at 10:51 AM, Alex Harui <aha...@adobe.com> wrote: >> >>> >>> >>> On 2/16/17, 10:37 AM, "carlos.rov...@gmail.com on behalf of Carlos >> Rovira" >>> <carlos.rov...@gmail.com on behalf of carlos.rov...@codeoscopic.com> >>> wrote: >>> >>>> Hi Alex, >>>> >>>> IMHO, this is not PAYG, no body wants "undefined" as a possible output. >>>> In my way of thinking this could be very radical way and take PAYG to >> the >>>> latest extreme. >>>> In that way almost all things are PAYG and should not be implemented in >>>> basic set ;) ... what do you think? >>> >>> You are welcome to build in a test for null and undefined in your >>> component sets. The way I think of it is: in production, how often is >>> null or undefined going to be assigned to a label? I would think it >> would >>> be very rare, if at all, but I could be wrong. If you use Model/View, >>> have the model and its validators prevent null/undefined from being a >>> value that the view is bound to. >>> >> >> I don't think a test for null or undefined is required. That implies code >> running needlessly. >> I am guessing that having a sensible default would solve this problem. >> That does not run code needlessly. >> >> Thanks, >> Om >> >> >>> >>> My 2 cents, >>> -Alex >>> >>>> >>>> 2017-02-16 2:55 GMT+01:00 Alex Harui <aha...@adobe.com>: >>>> >>>>> The Basic components don't test for unexpected inputs. It isn't PAYG. >>>>> We >>>>> should try to remember to add some defensive code for common cases to >>>>> Express. >>>>> >>>>> -Alex >>>>> >>>>> On 2/15/17, 3:31 PM, "Justin Mclean" <jus...@classsoftware.com> >> wrote: >>>>> >>>>>> Hi, >>>>>> >>>>>> This application when run displays “undefined” in text on the screen. >>>>>> >>>>>> <?xml version="1.0" encoding="utf-8"?> >>>>>> <js:Application xmlns:fx="http://ns.adobe.com/mxml/2009"; >>>>>> xmlns:js="library://ns.apache.org/flexjs/basic" >>>>>> xmlns:local="*"> >>>>>> >>>>>> <js:valuesImpl> >>>>>> <js:SimpleCSSValuesImpl/> >>>>>> </js:valuesImpl> >>>>>> >>>>>> <js:initialView> >>>>>> <js:View percentWidth="100" percentHeight="100"> >>>>>> <js:VContainer> >>>>>> <js:Label text="Here is some text" /> >>>>>> <local:SimpleComponent /> >>>>>> </js:VContainer> >>>>>> </js:View> >>>>>> </js:initialView> >>>>>> >>>>>> </js:Application> >>>>>> >>>>>> The component code: >>>>>> >>>>>> <?xml version="1.0" encoding="utf-8"?> >>>>>> <js:VContainer xmlns:fx="http://ns.adobe.com/mxml/2009"; >>>>>> xmlns:js="library://ns.apache.org/flexjs/basic"> >>>>>> >>>>>> <fx:Script><![CDATA[ >>>>>> [Bindable] public var text:String; >>>>>> ]]></fx:Script> >>>>>> >>>>>> <js:beads> >>>>>> <js:ContainerDataBinding /> >>>>>> </js:beads> >>>>>> >>>>>> <js:Label text="{text}" /> >>>>>> >>>>>> </js:VContainer> >>>>>> >>>>>> This can be worked around by doing this in the component: >>>>>> >>>>>> <fx:Script><![CDATA[ >>>>>> [Bindable] public var text:String = “"; >>>>>> ]]></fx:Script> >>>>>> >>>>>> But still looks like a bug / is unexpected behaviour to me. What do >>>>> other >>>>>> people think? >>>>>> >>>>>> Thanks, >>>>>> Justin >>>>> >>>>> >>>> >>>> >>>> -- >>>> >>>> Carlos Rovira >>>> Director General >>>> M: +34 607 22 60 05 >>>> http://www.codeoscopic.com >>>> http://www.avant2.es >>>> >>>> Este mensaje se dirige exclusivamente a su destinatario y puede contener >>>> información privilegiada o confidencial. Si ha recibido este mensaje por >>>> error, le rogamos que nos lo comunique inmediatamente por esta misma >> vía y >>>> proceda a su destrucción. >>>> >>>> De la vigente Ley Orgánica de Protección de Datos (15/1999), le >>>> comunicamos >>>> que sus datos forman parte de un fichero cuyo responsable es CODEOSCOPIC >>>> S.A. La finalidad de dicho tratamiento es facilitar la prestación del >>>> servicio o información solicitados, teniendo usted derecho de acceso, >>>> rectificación, cancelación y oposición de sus datos dirigiéndose a >>>> nuestras >>>> oficinas c/ Paseo de la Habana 9-11, 28036, Madrid con la documentación >>>> necesaria. >>> >>> >> > > > > -- > > Carlos Rovira > Director General > M: +34 607 22 60 05 > http://www.codeoscopic.com > http://www.avant2.es > > Este mensaje se dirige exclusivamente a su destinatario y puede contener > información privilegiada o confidencial. Si ha recibido este mensaje por > error, le rogamos que nos lo comunique inmediatamente por esta misma vía y > proceda a su destrucción. > > De la vigente Ley Orgánica de Protección de Datos (15/1999), le comunicamos > que sus datos forman parte de un fichero cuyo responsable es CODEOSCOPIC > S.A. La finalidad de dicho tratamiento es facilitar la prestación del > servicio o información solicitados, teniendo usted derecho de acceso, > rectificación, cancelación y oposición de sus datos dirigiéndose a nuestras > oficinas c/ Paseo de la Habana 9-11, 28036, Madrid con la documentación > necesaria.
