What's New in React?
summary
Upgrading to React 16 yields concrete changes: gzipped bundle size drops from ~44KB to 39 kilobytes, deprecation warnings become errors so propTypes and createClass move to external packages, and fragments let components return arrays or strings without extra DOM nodes. Fiber enables async rendering with interruptible reconciliation and scheduling (demo shows a thousand-component app staying responsive), componentDidCatch provides error boundaries, and server rendering adds streaming for large apps plus order-of-magnitude SSR speedups; async rendering is disabled by default in 16 (RC3 available).
AI-written summary · about
chapters (7)
- 0:00Introduction to React 16
- 2:37Core updates and breaking changes
- 4:12New component return types
- 9:05React fiber and reconciliation
- 17:22Error handling
- 20:20Server-side rendering
- 23:44Q&A and conclusion
