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How do DATETIME values work in SQLite?
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Integers will always be supported as integers in databases, flat files, etc. You do a little math and cast it into another type and you can format the date anyway you want.
Doing it this way, you don't have to worry when [insert current favorite database here] is replaced with [future favorit...
Accessing private member variables from prototype-defined functions
...es.
If you need prototypal inheritance -- for inheritance, performance, etc. -- then stick with the "_private" naming convention, and don't bother with closures.
I don't understand why JS developers try SO hard to make fields truly private.
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Reference - What does this error mean in PHP?
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Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given
First and foremost:
Please, don't use mysql_* functions in new code. They are no longer maintained and are officially deprecated. See the red box? Learn abou...
What is the difference between Numpy's array() and asarray() functions?
...a copy is needed to satisfy any of the
other requirements (dtype, order, etc.).
subok : bool, optional If True, then sub-classes will be
passed-through, otherwise the returned array will be forced to be a
base-class array (default).
ndmin : int, optional Specifies the minimum number ...
Performant Entity Serialization: BSON vs MessagePack (vs JSON)
...ere such keys are "longer but repeated alot" (MsgPack, JSON/BSON, and XML, etc over many records) but won't help ProtocolBuffers at all here.. Avro does key redundancy elimination manually by transmitting the schema separately.
– user2864740
Feb 26 '15 at 22:27...
How do I undo 'git add' before commit?
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If you type:
git status
Git will tell you what is staged, etc., including instructions on how to unstage:
use "git reset HEAD <file>..." to unstage
I find Git does a pretty good job of nudging me to do the right thing in situations like this.
Note: Recent Git versions (1.8...
Master-master vs master-slave database architecture?
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Auto-Sharding
Real-Time Responsiveness
On-Line Operations (Schema changes etc)
Distributed writes
Cons
See known limitations
You can visit for my Blog full breakdown including architecture diagrams that goes into further details about the 3 mentioned architectures.
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Why are static variables considered evil?
...data is encapsulated in objects (that can be extended, information hiding, etc). Statics, in the way you are describing using them, are essentially to use them as a global variable to avoid dealing with issues like scope. However, global variables is one of the defining characteristics of procedural...
What is the difference between integration and unit tests?
...sses use third-party classes (the String/string class, collection classes, etc.) which don't make sense to be mocked or isolated from; we simply regard them as stable and reliable dependencies which are outside the testing scope.
– Rogério
Apr 22 '15 at 21:58
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Rails formatting date
... be negative, 4 digits at least)
-0001, 0000, 1995, 2009, 14292, etc.
%C - year / 100 (round down. 20 in 2009)
%y - year % 100 (00..99)
%m - Month of the year, zero-padded (01..12)
%_m blank-padded ( 1..12)
%-m no-padded (1..12)
%B - The full month name (``J...