queryKey

2 posts

01. 04. 2026 · 18 min read

How TanStack Query queryKey management evolved from inline arrays and constants to key factories and v5 queryOptions, with DataTag and invalidation.

12. 30. 2025 · 13 min read

How queryKey Comparison Works

How TanStack Query judges new queryKey arrays equal: hashKey serialization (key order, undefined, Map, cycles) and how filters compare key structure.