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Thread vs ThreadPool
What is the difference between using a new thread and using a thread from the thread pool? What performance benefits are there and why should I consider using a thread from the pool rather than one I've explicitly created? I'm thinking specifically of .NET here, but general examples are fine.
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Can someone explain __all__ in Python?
...asAlec Thomas
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Is it possible to get the non-enumerable inherited property names of an object?
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Milan JaricMilan Jaric
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Rails I18n validation deprecation warning
... dont works.
– Pioz
Dec 5 '13 at 13:32
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@Pioz It may be caused by the gems your application depe...
Delete ActionLink with confirm dialog
...trov
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Guaranteed lifetime of temporary in C++?
... now.
– BigSandwich
Feb 27 '09 at 1:32
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How can I select random files from a directory in bash?
I have a directory with about 2000 files. How can I select a random sample of N files through using either a bash script or a list of piped commands?
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Find the files existing in one directory but not in the other [closed]
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– Anthony Vanover
Sep 19 '16 at 16:32
@ulkas, the output could be incorrect if you use (ls -R dir|sort).
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E11000 duplicate key error index in mongodb mongoose
...xes
From comments:
Your error says that the key is named mydb.users.$email_1 which makes me suspect that you have an index on both users.email and users.local.email (The former being old and unused at the moment). Removing a field from a Mongoose model doesn't affect the database. Check with mydb.u...
how do you filter pandas dataframes by multiple columns
...an ± std. dev. of 7 runs, 100 loops each)
Results for 10,000,000 rows:
326 ms ± 6.52 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
472 ms ± 25.1 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
So results depend on the size and the data. On my laptop, query() gets faster after...