Things Claude changed that I didn't understand — explained… by Claude.https://til.iamdanielmarino.com/https://til.iamdanielmarino.com/2026-04-23-why-usememo-fixed-rerenders/https://til.iamdanielmarino.com/2026-04-23-why-usememo-fixed-rerenders/Claude wrapped a prop in useMemo and my list stopped thrashing. Here's the reference-equality detail I was missing.Thu, 23 Apr 2026 00:00:00 GMTreactperformancehttps://til.iamdanielmarino.com/2026-04-22-tightening-typescript-billing-form/https://til.iamdanielmarino.com/2026-04-22-tightening-typescript-billing-form/Six small moves that replaced as-casts and empty-string fallbacks with types that actually match the runtime.Wed, 22 Apr 2026 00:00:00 GMTtypescriptreact