React useTimeout Hook: Declarative setTimeout with Cleanup (2026)

Here is a "Copied! " button. Every codebase has one, and this version has three bugs: function CopyButton ({ text }: { text : string }) { const [ copied , setCopied ] = useState ( false ); useEffect (() => { if ( !

Source: [Dev.to](https://dev.to/childrentime/react-usetimeout-hook-declarative-settimeout-with-cleanup-2026-47pk)