
This article shows you a useful technique to cache some of that page data on the browser in-memory. Since we use Ajax, the page is not reloaded each time. This prevents the cache from being invalidated on each round-trip. Client-side caching is sometimes required for performance reasons and also to take the load off of the DBMS. Since most modern PCs have plenty of RAM to spare, client-side caching becomes an important weapon in the modern programmer's arsenal of tricks.
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