hermes VS react-native-debugger

Hermes is a big one as well: low startup latency, low memory

https://hermesengine.dev/

Hermes

InstagramBundle.js.hbc.spk.xz is likely a compressed version of Hermes bytecode (js.hbc)"

In React Native's case, it uses an engine called Hermes:

📜 I made JSON.parse() 2x faster: Radek proposes to improve the performance of Hermes by using very fast C++ libs based on SIMD instructions. Interesting to read even if you don't use React-Native. Ongoing discussions on the Hermes PR.

Thanks! There's a preliminary PR with a discussion here: https://github.com/facebook/hermes/pull/933 (and broader context here: https://github.com/facebook/hermes/issues/811 ). But we'll see if there's any interest on Hermes' side to merging it. They definitely want to improve the parser, but it's unclear to me if they want to take on the simdjson/simdutf dependencies.

For me it’s a JS engine for React Natve - https://hermesengine.dev/

💉 Building and injecting a JS bundle a basic concept: If the native code wasn’t changed, simply create JS bundle and inject it into the precompiled application. (You must take an extra step to convert a js file to bytecode if you use the Hermes js engine.)

I used to use this which has what I'm talking about, but I've had issues running it with hermes.

https://github.com/jhen0409/react-native-debugger, It is a great tool to debug redux , it comes with the default debugger like we use in web to debug redux.

react-native-debugger

Alternatively, instead of using the adb tool, you can also use the React Native Debugger app (https://github.com/jhen0409/react-native-debugger) to open the debugger on your device. This app provides a button that you can press to open the debugger, so you don't have to use the adb tool or shake the phone.

I use React Native Debugger, it is all-in-ome debugger (https://github.com/jhen0409/react-native-debugger).

React Native is a great tool for certain jobs. Depending on what you're trying to build, Swift may or may not be a better fit. As for debugging, React Native Debugger can be your best friend. https://github.com/jhen0409/react-native-debugger

There are many ways to debug your app by reaching for tools like React Dev Tools, a simple element inspector or a network tab that you're used to. Tools such as React Native Debugger are also quite popular, but they require turning on the 'Remote debugging' mode on your simulator, which I found sometimes interferes with the app and throws weird errors.