template object keys

[gertcuykens]

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys

rows = [{
  "field1":"test1",
  "field2":"test2",
  "field3":"test3",
  "field4":"test4"
}]

<template repeat="{{row in rows}}">
  <template keys="{{key in row}}">
   {{key}} :  {{row[key]}} </br>
  </template>
</template>

So I can solve this
http://stackoverflow.com/questions/27724788/polymer-template-repeat-field-names

[davidmaxwaterman]

Did the getKeys method that was mentioned in reply to your SO question not work for you?

[gertcuykens]

Yes, but still wondering if making a template keys=... would be a better solution or not ? If getKeys is considered the best option instead of a new template keys=... feature then this can be closed.

[gertcuykens]

found a issue

<template repeat="{{i in keys(obj)}}">
</template>

wil not detect changes to obj

[pflannery]

This plunker shows two examples:

1. How to refresh a repeat using a filter parameter. Less overhead and simple to implement. It's recommended to use event actions over observers where possible,
2. How to observe an Object as an Array (based from this issue comment Should be able to <template repeat> on object values, Maps just like we do on array values. googlearchive/polymer-expressions#11 (comment))

[gertcuykens]

Ok I understand the example thanks, using observers is indeed to complex

[ryantheleach]

@pflannery Is there anyway to work this into a component to make it easier to use?

[tjsavage]

Closing this issue due to age and the release of version 1 of Polymer - please feel free to re-open if this is incorrect.