Coding challenges: assess developers with real problems, not trick questions

// Merge overlapping booking intervals export function mergeSlots(slots: Slot[]): Slot[] { const sorted = [...slots].sort((a, b) => a.start - b.start); return sorted.reduce((acc, s) => { const last = acc.at(-1); if (last && s.start <= last.end) last.end = Math.max(last.end, s.end); else acc.push({ ...s }); return acc; }, [] as Slot[]);