Caching in programming and web development helps optimize performance by storing and reusing expensive operation results. Next.js introduces unstable_cache, a low-level cache API for granular control over caching, useful for database queries or API calls.
unstable_cache(func, keys, options)() - func is the function to cache, keys are unique values identifying the data key, options control caching details like revalidation time, tags for cache invalidation. Call with () to retrieve cached data.
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