New React Native CLI Features Developers Must Know
1 ) React Native Framework vs. Bare React Native
React Native enables developers familiar with React to build native mobile apps, supporting both React newcomers and experienced platform developers.
Using a Framework like Expo is highly recommended for most new apps as it offers a comprehensive toolbox with ready made APIs, saving development time.
Without a Framework, developers must create or assemble many core functionalities themselves, increasing complexity and maintenance effort.
Frameworks provide essential features such as navigation, native API access, and dependency management out of the box.
2 ) Expo: The Leading React Native Framework
Expo is a free, open source production grade Framework that extends React Native with developer friendly tools.
Key features include file based routing, a standardized library of native modules, and plugin support to customize native code without direct native file management.
Regularly updated in collaboration with the core React Native team at Meta, Expo keeps pace with the latest React Native capabilities.
Expo Application Services (EAS) offer additional optional services to assist in the complete app development lifecycle.
Getting started is easy via the command: `npx create expo app@latest`.
3 ) Expo Go vs. Expo Development Builds
For rapid development, Expo Go allows running apps instantly on devices without building native binaries, ideal for prototypes and development phases.
Expo Development Builds are custom native builds that include your app specific native code and dependencies, required for accessing advanced native functionalities.
This distinction is important for apps requiring native modules not supported by the standard Expo Go client.
4 ) React Native CLI and Industry Adoption
React Native CLI allows developers to create apps without relying on a Framework, suitable for projects with specialized constraints or custom native requirements.
While powerful, using React Native CLI demands more setup and maintenance effort compared to Frameworks like Expo.
In industry practice, Expo has become a prevalent standard for many companies due to its streamlined development process, but React Native CLI remains crucial for fully customized or complex native features.
Developers should evaluate their project needs carefully to choose between using Expo, React Native CLI, or a hybrid approach.
5 ) Getting Started and Learning Resources
React Native documentation provides comprehensive guidance suitable for all experience levels, including interactive examples that can be run directly in the browser through Snack Player.
Foundational knowledge of JavaScript and optionally React is beneficial to leverage React Native effectively.
Developer notes and platform specific explanations cater to diverse backgrounds including web, Android, and iOS development.
For environment setup, React Native docs recommend starting with Expo for new projects, with instructions for setting up bare React Native environments also available.
Summary:
React Native development has evolved with powerful CLI and Framework tools, where Expo stands out as a robust Framework simplifying native app development with extensive ready to use features. Developers must understand the differences between Expo Go and Development Builds, and whether to use Expo or React Native CLI based on project requirements. Leveraging these new CLI features and Framework capabilities can significantly enhance productivity and app quality in the React Native ecosystem.
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