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Im justing wondering, with redis being stored in memory, does access still need to be handled the same way as disk I/O?
Can you do stuff like…
X = redis.get X
#do stuff with X
or would you need to do…
redis.get X, (X) ->
#do stuff with X
Communication with redis occurs over sockets. Sockets are still I/O, and (nearly) all I/O in node is handled asynchronously. Yes, you need the callback.