0.8 documentation incorrect for sub-property observers?

[hadf...@gmail.com]

Very happy to see the rapid progress being made toward 1.0. You guys are awesome. 

In the Observing changes to sub-properties section of the 0.8 dev guide, the following example is given of how to define an observer of a sub-property:

  observers: {

    'user.manager.*': 'userManagerChanged'

  }

However, with v0.9.1, when I define an observer this way I get the error "TypeError: observers.forEach is not a function" in Polymer.Base._addFeature._addComplexObserverEffects (effects.html:120). From what I can tell, the following seems to be the correct syntax:

  observers: [

    'userManagerChanged(user.manager.*)'

  ],

Is this the correct syntax, or is there a bug in the current implementation?

Thanks very much!

[Arthur Evans]

Hi,

Yes, the format changed between 0.8-rc.2 and 0.9. Observers now look more like computed properties:

  observers: [

    'userManagerChanged(user.manager.*)'

  ]

Note that `observers` is now an array, not an object.

Updated doc is imminent, as soon as we have an official 0.9 release.

Thanks,

Arthur

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[Michael Giuffrida]

It sucks that the docs will remain outdated, but if you're targeting a specific version like v0.8.0-rc7 you can get mostly up to date information from that revision's PRIMER. md, e.g.: https://github.com/Polymer/polymer/blob/v0.8.0-rc.7/PRIMER.md

Which in this case has the correct syntax for observers.

Michael

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