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Should switch statements always contain a default clause?
...pe! based on the language,
// there should probably be some error-handling
// here, maybe an exception
}
2. To handle 'default' actions, where the cases are for special behavior.
You see this a LOT in menu-driven programs and bash shell scripts. You might also see this when a vari...
How to fetch the row count for all tables in a SQL SERVER database [duplicate]
... table_name varchar(255),
row_count int
)
EXEC sp_MSForEachTable @command1='INSERT #counts (table_name, row_count) SELECT ''?'', COUNT(*) FROM ?'
SELECT table_name, row_count FROM #counts ORDER BY table_name, row_count DESC
DROP TABLE #counts
The output will be a list of tables and their row ...
Favicons - Best practices
I'm trying to get my head around all these different sizes and formats that are needed for Favicons, Touch icons and now Tile icons too.
...
Where is the “Fold” LINQ Extension Method?
... prod * next);
See MSDN for more information. It lets you specify a seed and then an expression to calculate successive values.
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Is the != check thread safe?
... edited Apr 15 '16 at 12:57
Andrew Tobilko
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answered Aug 27 '13 at 8:35
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virtualenv --no-site-packages and pip still finding global packages?
...on that virtualenv --no-site-packages would create a completely separate and isolated Python environment, but it doesn't seem to.
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Delete everything in a MongoDB database
...way everything in a database—that is, to delete every single collection, and whatever else might be lying around, and start from scratch. Is there a single line of code that will let me do this? Bonus points for giving both a MongoDB console method and a MongoDB Ruby driver method.
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Importing variables from another file?
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from file1 import *
will import all objects and methods in file1
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Adjusting the Xcode iPhone simulator scale and size [duplicate]
...5 in Xcode, be the actual size of the iPhone 5. I'm getting a huge display and things seemed to be scaled.
8 Answers
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Counting the number of elements with the values of x in a vector
... x creates a logical vector which is TRUE at every location that x occurs, and when suming, the logical vector is coerced to numeric which converts TRUE to 1 and FALSE to 0.
However, note that for floating point numbers it's better to use something like: sum(abs(numbers - x) < 1e-6).
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