Learn YEW with Real Code Examples
Updated Nov 25, 2025
Architecture
Component-based architecture similar to React
Virtual DOM for efficient diffing and rendering
Message-based update system for reactivity
Rust compiled to WebAssembly running in the browser
Supports asynchronous operations with `wasm-bindgen-futures`
Rendering Model
html! macro -> Virtual DOM node
Diffing algorithm detects changes
Updates only necessary DOM elements
Reactivity via message passing
Efficient rendering in WebAssembly
Architectural Patterns
Component-as-a-Service for UI
Message-driven state updates
Asynchronous fetch handling
Virtual DOM diffing
Integration with browser APIs
Real World Architectures
Single-page applications with Rust backend
Data visualization dashboards
Interactive educational apps
WebAssembly games
Realtime chat or collaboration tools
Design Principles
Component-based architecture
Virtual DOM for efficient rendering
Message-driven reactivity
Memory safety via Rust
Compile-to-Wasm for browser performance
Scalability Guide
Efficient UI updates via virtual DOM
Async operations handled via futures
Component-based design for modularity
Code splitting possible with multiple Wasm modules
Optimize Wasm binary size for faster load
Migration Guide
Adapt JS/React projects to Yew by rewriting components in Rust
Use wasm-bindgen for JS interop
Replace JS async with Rust futures
Use virtual DOM and messages for reactivity
Test WebAssembly output in target browsers