Coming in React18: startTransition
summary
React 18 adds a concurrent rendering API that lets less urgent updates run in the background so the page stays responsive; wrap slow updates with startTransition to mark them as interruptible, use useTransition which returns the isPending flag and a start function, the runtime discards outdated work and prioritizes urgent renders, and it’s opt in and non‑breaking so existing apps keep behaving while heavy updates no longer freeze the UI.
AI-written summary · about
chapters (6)
- 0:00Introduction to react 18
- 1:17The need for concurrency
- 2:08Understanding transitions
- 3:46Using startTransition
- 4:48Implementation details
- 5:53Compatibility and wrap up
