React Native Core Principles and Best Practices
Article Summary
The React Native team at Facebook just pulled back the curtain on how they decide what to build next. Spoiler: cross-platform consistency isn't their top priority.
The React Native team at Facebook published their core principles that guide how they prioritize work and make decisions. This transparency piece reveals what drives the team behind one of the most widely adopted mobile frameworks.
Key Takeaways
- Native experience trumps cross-platform consistency: renders to platform primitives like UITextField
- Facebook runs hundreds of React Native screens serving billions across device spectrum
- Hermes JavaScript engine built from scratch to dramatically improve Android start times
- Near-instant feedback during development: code changes visible in seconds, not minutes
- Cross-platform C++ architecture enables parity from mobile to VR to game consoles
Facebook's React Native team prioritizes native performance and developer speed over cross-platform uniformity, validated at massive scale across billions of users.
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What This Article Covers
Facebook's React Native team had to support gradual adoption across hundreds of developers working on the same massive-scale app. They needed a way to integrate React Native incrementally rather than requiring a complete rewrite.
React Native was built to let teams adopt it one screen at a time. The plan also included the ability to migrate individual native views within existing native screens to React Native without migrating the entire platform.
This modular approach showed that React Native could work at massive organizational scale. Hundreds of developers could collaborate on the same codebase while keeping things stable and reducing friction between platform teams.
This page summarizes “React Native Core Principles and Best Practices” by React Native Blog, published Jul 17, 2020. All credit for the original work goes to the authors.
