React Native 2026: Bridgeless Architecture & JSI
React Native 2026: Bridgeless Architecture & JSI
Master the revolution of React Native's New Architecture. In this course, we move beyond the legacy Bridge to the high-performance world of JSI (JavaScript Interface). Learn to write 'Near-Native' applications by communicating directly with C++ and Rust. We focus on system-level programming, TurboModules, and synchronous native calls to build the next generation of mobile apps with unprecedented speed and efficiency.
Lessons
- The Evolution: Why the Bridge is Dead
- Understanding JSI (JavaScript Interface)
- Setting up the 2026 Environment
- The Role of Hermes Engine in Bridgeless
- C++ Basics for JavaScript Developers
- Your First JSI Module: The 'Hello C++' Challenge
- Memory Management: Pointers vs References
- Intro to TurboModules
- The Codegen Process
- Fabric: The New UI Renderer
- Setting up CMake for JSI
- Defining TypeScript Specs for Codegen
- Implementing TurboModule in C++ (Android)
- Implementing TurboModule in C++ (iOS)
- Week 1 Project: Synchronous Math Module
- JSI Data Types: Strings and Numbers
- Handling Objects and Arrays in JSI
- The Power of HostObjects
- Bridgeless Mode: Enabling it in 2026
- Debugging C++ in React Native
- Week 2 Project: High-Speed Crypto Module
- Threading Model in New Architecture
- Synchronous Native Calls: Pros and Cons
- Sharing Memory Buffers (ArrayBuffers)
- Introduction to Rust in React Native
- Connecting Rust to JSI via CXX
- Week 3 Project: Rust-Powered Image Processor
- Advanced JSI: Error Handling in C++
- Managing JS Callbacks in C++
- The New Architecture Lifecycle
- Fabric: Creating a Custom View in C++
- Fabric Props and Events
- Week 4 Project: Custom High-Performance Slider
- Interop Layer: Using Legacy Modules
- Performance Profiling with Flipper & Chrome
- The Future of React Native (2027 and Beyond)