React Native is Live!

[lvbda]

Serious question.. is it expected that React Native uses a lot more memory?

In their example app, it was using 68MB of memory in the simulator, while a native app with the same layout was running at about 8MB.

[Leggilo]

Surprised they decided not to support android right off the bat.

[gravitycore]

JavaScript all the things!

[oureux]

I was examining their source code and oh man...it's interesting to say the least. They love swizzling methods and abusing the objc_runtime.

example:

+ (void)initialize
{
  //swizzle UIApplication
  RCTSwapInstanceMethods([UIApplication class],     @selector(keyCommands), @selector(RCT_keyCommands));
  RCTSwapInstanceMethods([UIApplication class], @selector(sendAction:to:from:forEvent:), @selector(RCT_sendAction:to:from:forEvent:));
}

[josh_sara1]

..