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JSON: why are forward slashes escaped?
... cannot expect standards to change, hence every single PHP developer must know and implement all of those infinite number of workarounds against all those serious bugs found in PHP. Enter stackoverflow ..
– Tino
Aug 31 '17 at 7:50
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Calculating width from percent to pixel then minus by pixel in LESS CSS
...ck, dude! Thank you for those examples and explanations. Do you happen to know how I could divide an unkown width of a container (let's call it div.categories) into 4 equal parts, using LESS?
– Shawn Spencer
Feb 10 '15 at 19:13
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MyISAM versus InnoDB [closed]
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Also it might be helpful to know that MyISAM supports spatial index while InnoDB does not. And MyISAM do not seem to use foreign keys even though it doesn't prevent creating one.
– kriver
Sep 12 '12 at 14:59
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What is Full Text Search vs LIKE
...Document sets = {d1, d2, d3, d4, ... dn}
Term sets = {t1, t2, t3, .. tn}
Now term-document matrix (which term member of which document) can be represented as:
t1 -> {d1, d5, d9,.. dn}
t2 -> {d11, d50, d2,.. dn}
t3 -> {d23, d67, d34,.. dn}
:
tn -> {d90, d87, d57,.. dn}
When the req...
Package objects
...ded to effectively use your API:
implicit def a2b(a: A): B = // ...
}
Now the definitions inside that package object are available inside the whole package foo.bar. Furthermore the definitions get imported when someone outside of that package imports foo.bar._.
This way you can prevent to requ...
What is mattr_accessor in a Rails module?
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In latest version of Rails cattr_* are now aliases for mattr_*. See the cattr_accessor source
– ouranos
Apr 13 '16 at 2:03
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What is the difference between loose coupling and tight coupling in the object oriented paradigm?
...maintain a list of classes that inherit from 'Observer', without actually knowing the concrete type of those classes, this is an instance of loose coupling. The Subject doesn't depend on any of its Observers or their internal concerns. The observers don't depend on the Subject or any of its concerns...
Best approach to remove time part of datetime in SQL Server
...imple-talk.com/sql/t-sql-programming/ten-common-sql-programming-mistakes/
Now, this does have an example of later SQL Server optimiser versions managing CAST to date correctly, but generally it will be a bad idea ...
Edit, Sep 2018, for datetime2
DECLARE @datetime2value datetime2 = '02180912 11:4...
what does the __file__ variable mean/do?
...e file otherwise.
Module __file__ attributes (and related values) should now always contain absolute paths by default, with the sole exception of __main__.__file__ when a script has been executed directly using a relative path. (Contributed by Brett Cannon in issue 18416.)
Example:
Calling module...
Android Game Keeps Getting Hacked [closed]
So we've been through this several times now, we release a game (for cheap) and someone hacks it and puts it up on a mirror. We setup Google Alerts for all our apps, so we get told daily who's doing the hacking. So far, we have implemented the licensing service as Google has suggested, our salt is...