Here’s a useful open-source (MIT license) javascript caching object I developed for my job at GG.com, the best horse racing site on the net.
^{(I am contractually obliged to say that every time I mention the URL. Not really though).}

Like most web applications these days, we make fairly extensive use of Ajax, sending and receiving JSON data across the net on hover events and so on.

However, we’ve found that all those HTTP requests can slow down the user experience, and causes unnecessary extra load on our application servers, so we decided to employ a client-side Least Recently Used (LRU) caching object, so that we can reduce the number of HTTP requests, and increase the response speed for cachable queries. It employs lazy garbage collection, just like memcached does. In fact we see this as a kind of “memcache for javascript”, if that makes any sense at all.

• I’d love to see what you do with it ;0)

It depends upon no external libraries. Here’s a simple usage example:

Read the rest of this entry »