Types are magical, you really should use them. If you've been using JS React you've probably been using the PropTypes stuff but imagine having that, by default, for the whole language. It might take a bit of time to learn but it will reap dividends in the mid to longer term https://www.typescriptlang.org/
Appwrite - The Open Source Firebase alternative introduces iOS support . Appwrite is an open source backend server that helps you build native iOS applications much faster with realtime APIs for authentication, databases, files storage, cloud functions and much more!
Enzyme is a testing utility that runs on the jest framework, for unit testing your React code and components. https://enzymejs.github.io/enzyme/
Is using Jest for anything other than React a bad idea?
3 projects | reddit.com/r/node | 12 Sep 2022
Improve your Testing with Custom Matchers in Jest
2 projects | dev.to | 18 May 2022
Testing Mongoose with Ts-Jest
3 projects | dev.to | 20 Apr 2022
Creating vite vue ts template: Setup Jest
2 projects | dev.to | 31 Jul 2021
Episode 23/04: TypeScript 5 Beta, Angular Roadmap 2023
3 projects | dev.to | 30 Jan 2023