Learn REACT-TRANSITION-GROUP with Real Code Examples
Updated Nov 26, 2025
Performance Notes
Use minimal DOM reflow operations
Avoid animating expensive properties like layout
Prefer transform/opacity for smooth animations
Use TransitionGroup carefully for large lists
Throttle rapid animation state toggles
Security Notes
RTG handles no network or data operations
Safe by default - only manages UI transitions
Beware of exposing internal state tools in debug
CSS animations should not rely on external scripts
Ensures no dangerous DOM injection
Monitoring Analytics
Measure reflow times
Track FPS for heavy transitions
Debug timing mismatches
Log transition lifecycle events
Profile React rendering performance
Code Quality
Keep classNames consistent
Document animation durations
Centralize CSS animation rules
Use unique keys in lists
Avoid nested transitions where possible