
The React stale closure bug: why your interval always logs the old state
setInterval logs 0 forever, event listeners see stale props, and callbacks fire with old values. Stale closures are React's most confusing bug…

setInterval logs 0 forever, event listeners see stale props, and callbacks fire with old values. Stale closures are React's most confusing bug…

You call setState, log the value on the next line, and it's stale. That's not a bug - it's how React works.…

Hooks can only be called inside a function component - but you knew that and you're still getting the error. Here's the…

The #1 React question on Stack Overflow, solved properly: why useEffect loops forever, what 'Too many re-renders' actually means, and the dependency-array…