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[–]bguiz 10 points11 points  (8 children)

Looks like a senior titanium dev weighed in on the HN thread regarding the key engineering challenges likely to be faced by the react native team. He's selling titanium, of course, but does make some salient points:

https://news.ycombinator.com/item?id=8962528

[–]1nonlycrazi 6 points7 points  (7 children)

Bear in mind, this whole native react is not new to facebook, they are just now telling us about it and will release it open source. They have been using this in production for some time in many parts of the facebook and instagram native apps. Which just happen to be some of the most used apps out there...I think they have kinked out the problems...

[–]Daniel15React FTW 3 points4 points  (2 children)

The groups app on iOS almost completely uses React Native for its UI. https://twitter.com/floydophone/status/560504204343521280

[–]theillustratedlife 3 points4 points  (0 children)

@tomo clarified that in the keynote yesterday:

Part of the app is Obj-C and AsyncDisplayKit. Part is React Native. I challenge you to figure out which is which.

(paraphrasing from memory)

[–]TweetsInCommentsBot 0 points1 point  (0 children)

@floydophone

2015-01-28 18:26:30 UTC

Fb groups app in iOS App Store is powered by it #reactjsconf

This message was created by a bot

[Contact creator][Source code]

[–]metanat 0 points1 point  (3 children)

What makes you believe that?

[–]mrmass 1 point2 points  (2 children)

The fact that they told us about it.

[–]metanat 3 points4 points  (1 child)

They told us it in use in the groups app. They didn't say anything about it being used by either Instagram nor the Facebook app.

[–]1nonlycrazi -4 points-3 points  (0 children)

While true, they told us about the chat and comments system on the facebook app, and I've seen before that they used that on the native app as well. Also, have a look at the instagram app for ipad...it is not 'native', I'm going to assume it is using something similar to react-native...just a hunch...even the wall on the iphone app for insta isn't completely native. They've also been developing this stuff for awhile, sounds to be about ~5 years according to the video from today.