This course helps you learn React Native fast. You build a solid base in React and use it to make smooth mobile apps. You also learn how React Hooks and React Query work together to handle data with high performance.
Why Use React Native
React Native lets you build mobile apps in less time than native iOS or Android code. You can see your changes on your device right away. You do not wait for long build times. This fast cycle helps you test ideas and fix issues quickly.
React Native also works on both iOS and Android. This means you write one codebase and ship to two platforms. Many JavaScript developers choose it for this reason.
Why Use React Query
React Query helps you fetch, cache, sync, and update server data with ease. React by itself does not tell you how to load or update data. Without a tool, you may end up mixing state and effects in many components. Some developers use general state libraries, but these tools focus on client state, not server state.
How Server State Works
Server state acts in a different way from client state. It lives on a remote system you do not own. It changes over time and may change without your knowledge. It also depends on async calls.
- It stays on a server you do not control
- It needs async calls to read or update
- Other people can change it at any time
- It can go out of date in your app
Common Server State Challenges
As you work with server data, you face clear problems. Each one impacts how your app works and feels.
- Cache data in a safe and clear way
- Merge repeated requests for the same data
- Update stale data in the background
- Know when data is no longer fresh
- Show updates as fast as possible
- Use tools like pagination and lazy loading
- Manage memory for old or unused data
- Share cached results without extra work