ideawu/ssdb — pull request #298 by ahkimkoo (2014-05-27 02:30:14+00:00)
Title: Update SSDB.js

fix bug: exception when callback is null.

callback(['error']);
^
TypeError: undefined is not a function
at Socket. (SSDB.js:32:13)
at Socket.EventEmitter.emit (events.js:95:17)
at net.js:440:14
at process._tickCallback (node.js:415:13)