[ewmailing]

I haven't used React Native, but I've done quite a bit with native bridging with JavaScriptCore and v8. If your performance bottlenecks are crossing the Javascript-to-native boundary, JIT can't help you. And crossing the bridge boundary isn't the cheapest operation.

[mwcampbell]

That isn't an issue with React Native, which runs JS on its own thread and implements an asynchronous, batched bridge between JS and native.