Local Caching
Local caching is a performance optimization technique where frequently accessed data is stored temporarily on a client device or within an application's runtime environment to reduce latency and network usage. It involves keeping copies of data, such as API responses, database queries, or static assets, in memory or on disk for faster retrieval. This approach improves application responsiveness and reduces server load by minimizing repeated requests for the same information.
Developers should implement local caching when building applications that require fast data access, handle high user concurrency, or operate in low-connectivity environments. It is essential for improving user experience in web apps, mobile apps, and desktop software by reducing load times and bandwidth consumption. Common use cases include caching API results in frontend frameworks, storing user preferences, and accelerating database queries in backend systems.