I think I documented this recently, but the update is not live yet... I think what you're seeing is intended behavior, see:
https://github.com/Polymer/docs/pull/1457/files#diff-07936cc3163b32c7b2a4f859ae877754R550 On Thursday, January 21, 2016 at 5:42:53 AM UTC-8, Simona Butnaru wrote: > > When adding an element in array, using splice method, and then change a > subproperty from the added item, the path from array observation is not the > correct one. > Let's say we have a persons array with 11 objects, each object having name > and age as properties. When adding a person {name: Sim, age: 24} on > position 2, and after change the property name of person Sim, the observer > method returns the path "data.#11 > <https://github.com/Polymer/polymer/issues/11>.name". > I expected the path to be "data.#2 > <https://github.com/Polymer/polymer/pull/2>.name" because I added the > item on the second position. > > > Here is a jsfiddle that reproduces the error. > https://jsfiddle.net/simona_butnaru/zfwewthr/5/ > > I made a little research and I've seen that the issue is from polymer, at > the add function from Polymer.Collection. This line (var key = > this.store.push(item) - 1;) sets the key to be the length of array, and I > think the key shoud be the position where the item was added in array. > Follow Polymer on Google+: plus.google.com/107187849809354688692 --- You received this message because you are subscribed to the Google Groups "Polymer" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/polymer-dev/2c449ec9-9968-497e-8169-5a5ebddffc83%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
