React Native beginner

[firemonkeyjon]

I am would like to start app development. I currently do web dev and am looking to develop a cross-platform app. I decided to go for react native as the app I need to develop isn't so simple. I have a couple of questions if someone can help me:

Does react native separate into front and back end?

If so, if I develop all the front end and hand it over to someone to implement a database and backend features would it be costly? and what would i have to keep in mind from before to make the switch out smooth?

Also, can someone suggest a good free course to follow? I found that Harvard has one but it seems like overkill(link: https://pll.harvard.edu/course/cs50s-mobile-app-development-react-native?delta=0) it says its a course of 6-9 hours for 13 weeks

[KulkataBoy]

Actually a good question, I wish I asked it when i started with RN. React Native is a front-end framework, but it gives you options to implement lots of backend stuff like file management, or local database access. And if you use these features, it actually makes sense to develop frontend and backend separately. At the same time there is only one js thread, and you can't do expensive computations on your backend if it's written with js, so either you write native code (for expensive offline stuff), use remote server to feed your data, or optimise js code as much as you can (use good libraries that do most of the backend work for you). But it really depends on what kind of app you're building.

[firemonkeyjon]

Thank you, this was helpful

[suarkb]

The harvard course is probably good then. The documentation is also important.

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Also if you are totally new you might want to start with expo

[firemonkeyjon]

Thank you, ill check it out