Lists and Keys — Study Resources & PYQs

Curated resources, past papers and PYQs for Lists and Keys.

Study resources

Rendering Lists (Article) — The official React docs explaining why keys matter when rendering arrays of components.
ReactJS Tutorial - 18 - Lists and Keys (Video) — Codevolution's dedicated lesson on rendering lists with map() and why keys are required.
Preserving and Resetting State with Keys (Article) — Official React guide showing how keys control component identity and state preservation in the virtual DOM.