Learn PREACT-MOTION with Real Code Examples
Updated Nov 26, 2025
Architecture
Physics simulation loop
Declarative props -> animated styles
Value interpolators per frame
Component-based animation flow
List enter/exit using TransitionMotion
Rendering Model
Runs spring physics on each frame
Interpolates numeric values
Updates Preact VDOM
Maps animation state -> style object
Remount logic for TransitionMotion
Architectural Patterns
Render-prop style output
Declarative style state
Value-driven animations
Component-wrapped motion behavior
List animation orchestration
Real World Architectures
Animated mobile UI components
Lightweight landing pages
IoT control dashboards
Micro-frontend animated panels
WASM + Preact hybrid PWAs
Design Principles
Small and fast
Declarative animations
Natural physics modeling
Preact-first design
Simple, understandable APIs
Scalability Guide
Group motions for batching
Use presets for consistency
Avoid huge animated lists
Tune physics for performance
Split heavy motion components
Migration Guide
Replace CSS transitions with springs
Wrap key elements in Motion
Move dynamic values to state
Refactor lists to TransitionMotion
Modularize spring presets