react-native-best-practices

name	react-native-best-practices
description	Provides React Native performance optimization guidelines for FPS, TTI, bundle size, memory leaks, re-renders, and animations. Applies to tasks involving Hermes optimization, JS thread blocking, bridge overhead, FlashList, native modules, or debugging jank and frame drops.
license	MIT
metadata	{"author":"Callstack","tags":"react-native, expo, performance, optimization, profiling"}

React Native Best Practices

Overview

Performance optimization guide for React Native applications, covering JavaScript/React, Native (iOS/Android), and bundling optimizations. Based on Callstack's "Ultimate Guide to React Native Optimization".

Skill Format

Each reference file follows a hybrid format for fast lookup and deep understanding:

• Quick Pattern: Incorrect/Correct code snippets for immediate pattern matching
• Quick Command: Shell commands for process/measurement skills
• Quick Config: Configuration snippets for setup-focused skills
• Quick Reference: Summary tables for conceptual skills
• Deep Dive: Full context with When to Use, Prerequisites, Step-by-Step, Common Pitfalls

Impact ratings: CRITICAL (fix immediately), HIGH (significant improvement), MEDIUM (worthwhile optimization)

When to Apply

Reference these guidelines when: