Blog


📜

MongoDB Aggregation Stages: addFiels (set) / project (unset) / replaceRoot (replaceWith)


Digest of Working Effectively with Legacy Code


mongoexport is WAY FASTER than MongoDB Compass' Export Collection UI, but...


OS: SELECT(2), POLL(2), and their variants


URL Parameters / URL Query / Tornado get_argument()


Closest Pair of Points


Python: Socket Programming 101


A socket is like an endpoint... or a line segment


Python: synchronization primitives


Python: sharing states between processes