What Is Caching?
Caching isn't a new term to developers, but, historically, caching dynamic Web pages hasn't been a very easy or manageable task. Caching is the method of saving data of any kind in memory. When the cached data is needed, instead of re-creating the data, the application provides it to the client or requestor from the in-memory version of the data. The in-memory data is referred to as the cached version. The data can range from a letter in the alphabet to a complete Web page.
Implementing caching in your application increases performance because you can serve Web pages to clients without having to re-create the pages on every request. For instance, if you have a page that is dynamically built through a database query, but the data ...
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