A practical guide to unit testing React with Testing Library—setup, queries, user events, async, MSW, providers, and best practices.
A hands-on React drag-and-drop tutorial using dnd-kit: from basics to a Kanban board, with accessibility, performance tips, and common pitfalls.
Build an accessible React portal modal with TypeScript: focus trap, Escape handling, scroll locking, SSR safety, and tests with RTL.
A practical React guide to ARIA—when to use it, when not to, plus patterns for focus, labels, widgets, and testing.
Build a headless React UI component library step by step—accessibility, state, TypeScript, testing, and packaging—using a fully featured Tabs example.
X removes its in‑app Dark Mode toggle and kills “Dim,” forcing theme control to OS settings — here’s what changed, why it matters, and your options.
