cortex

Take a look at this: https://github.com/mquan/cortex "Cortex is simply a store that works for updates at any level. It achieves this by utilizing cursors, which lets each nested node keep track of its path as accessed from the root. When an update occurs, the affected node emits an update event whose payload contains the path of the node as well as instructions on how to update the data at the root. Cortex's internal PubSub picks up the event and routes it to the affected root node. From there, every affected node is rewrapped and updated to maintain immutability while leaving all unaffected nodes untouched. This allows for extremely simple and efficient"

If you are tired of using callbacks when nesting data structures with React, be sure to check out Cortex: https://github.com/mquan/cortex Cortex's goal is to support arbitrarily deep data structure without requiring you to pass callbacks down the chain.

Cortex is a library for React that is designed 'to support arbitrarily deep data structure[s] without requiring you to pass callbacks down the chain'. https://github.com/mquan/cortex

If you're going to dig any further into React, check out cortex's approach to simplifying nested data: https://github.com/mquan/cortex

Looks very nice indeed. Especially like the low overhead. I've been using an alternative, Cortex[1], recently. It's similar, but with a pubsub based eventing system so your updates don't need to be broadcast to every component that uses the data model (e.g. you can subscribe callbacks to specific changes in the model). It works nicely with React.js. Worth a look if way.js isn't quite enough. [1] https://github.com/mquan/cortex

Very cool! I had researched this technique before, when I found cortex: https://github.com/mquan/cortex. Cortex does something very similar, except it doesn't actually do persistent data structures. Building cursors off of the addons.update stuff is a neat idea. (why `onChange` instead of `set` and `pendingValue` instead of just `value`?) I agree that you can take this really far. At this point I need to sit back and thing about it. :) I think mori could provide better performance for certain types of apps, but it does come at a cost if interop. Time to hit the hammock.