I had the same issue beginning this week, fiexed with some IFs:
<polymer-custom-parent>
<template if="{{ items }}">
<template repeat="{{item in items}}">
<polymer-custom-item item="{{item}}">
{{item.title}}
</polymer-custom-item>
</template>
</template>
</polymer-custom-parent>
Hope that helps
Héctor Fernando
El jueves, 16 de enero de 2014 11:29:03 UTC-5, Junius Gunaratne escribió:
>
> I can't seem to put a JS object reference as an attribute in a template
> repeat statement. Anyone have an idea why this doesn't work?
>
> This works:
> <polymer-custom-parent>
> <template repeat="{{item in items}}">
> <polymer-custom-item item="randomstring">
> {{item.title}}
> </polymer-custom-item>
> </template>
> </polymer-custom-parent>
>
> This does not:
> <polymer-custom-parent>
> <template repeat="{{item in items}}">
> <polymer-custom-item item="{{item}}">
> {{item.title}}
> </polymer-custom-item>
> </template>
> </polymer-custom-parent>
>
> Console error:
> Exception caught during observer callback: TypeError: Cannot read property
> 'length' of undefined at Element.bind (
> http://localhost:8888/bower_components/platform/platform.js:33:5389<http://localhost:8888/bower_components/platform/platform.js>
> )
>
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