How I improved my React Native app 50x faster

1. js-spark-md5

   1 2 2,500 0.0 JavaScript

   Lightning fast normal and incremental md5 for javascript

   However, RN has still a lack of binary support. Unlike NodeJS, RN doesn't come with native modules for dealing with binary data out of the box, like crypto and Buffer. When it comes to processing binary data, calculating a digest hash like SHA-1 and MD5 and converting from/to hex and base64 are popular tasks. To accomplish those tasks, you have to use JavaScript libraries like spark-md5 and buffer. If you need crypto module, you have to install rn-nodeify and a bunch of polyfill libraries, which eventually messes up your project and makes it hard to maintain. So, implementing the end-to-end encryption in React Native has been a big challenge for me.

2. CodeRabbit

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3. react-native

   2 557 120,435 10.0 C++

   A framework for building native applications using React

   

   Unfortunately, the community is not interested in solving it.

4. react-native-sqlite-2

   3 2 379 0.0 TypeScript

   SQLite3 Native Plugin for React Native for iOS, Android, Windows and macOS.

   This issue forces me to escape \0 characters to store blob data in my module called react-native-sqlite-2 like this:

5. react-native-aes-gcm-crypto

   4 1 250 2.5 Java

   AES-GCM encryption/decryption for React Native

   

   As you can see above, the JS app just invokes native functions. Decrypting data is performed in my native module called react-native-aes-gcm-crypto, written in Kotlin and Swift.

6. react-native-quick-md5

   5 1 109 6.2 C++

   Fast C++ implementation with JSI binding of MD5 for React Native

   

   react-native-quick-md5 10x faster on iOS and 8x faster on Android

7. react-native-quick-base64

   6 3 373 7.4 TypeScript

   A fast base64 module for React Native

   

   react-native-quick-base64 4x faster on iOS

8. nodejs-mobile

   7 3 2,580 0.0 JavaScript

   Full-fledged Node.js on Android and iOS

   

   The React Native community is not focusing on providing solid APIs for binary data, unlike NodeJS. They are working on improving it as a front-end framework instead. And they would rely on extensions for other things like platform-dependent features. There is a project called nodejs-mobile which allows you to integrate NodeJS into your app. While it'd be fun for hobby projects, it's scary to rely on such a minor framework for my app focusing on its longevity. In fact, this library looks inactive these days.

9. SaaSHub

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10. hermes

    8 44 10,075 9.7 C++

    A JavaScript engine optimized for running React Native.

    

    Eh, performance? Yeah, React Native is basically performant. But, React Native takes care of the rendering only. Everything you know about React performance will apply in a React Native application. React Native is also trying to improve launch speed by building their own JavaScript engine called Hermes. So, the rendering is usually fine.

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