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JavaScript + Unicode regexes
...\u309D-\u309F]
Lastly, it's possible to plug a char class with more than one Unicode property to get a shorter regex than you would get by just combining them (as long as certain settings are checked).
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Running shell command and capturing the output
...memyself staff 0 Mar 14 11:04 files\n'
This can all be compressed to a one-liner:
>>> subprocess.run(['ls', '-l'], stdout=subprocess.PIPE).stdout.decode('utf-8')
'total 0\n-rw-r--r-- 1 memyself staff 0 Mar 14 11:04 files\n'
If you want to pass input to the process's stdin, pass a ...
Why do I need to override the equals and hashCode methods in Java?
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if you think you need to override one, then you need to override both of them is wrong. You need to override hashCode if your class overrides equals but reverse is not true.
– akhil_mittal
Oct 17 '15 at 9:00
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Task vs Thread differences [duplicate]
...laying with TaskScheduler options you can setup async tasks be executed in one thread synchronously. To express parallel code execution higher abstractions (than Tasks) could be used: Parallel.ForEach, PLINQ, Dataflow.
Tasks are integrated with C# async/await features aka Promise Model, e.g there r...
Calling C++ class methods via a function pointer
...r .*... Personally, I would still have written this->*pt2Member, that's one less operator.
– Alexis Wilke
Feb 17 '14 at 3:51
7
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Why does an image captured using camera intent gets rotated on some devices on Android?
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Most phone cameras are landscape, meaning if you take the photo in portrait, the resulting photos will be rotated 90 degrees. In this case, the camera software should populate the Exif data with the orientation that the photo should...
Cannot push to Git repository on Bitbucket
...file:
$ ls -a ~/.ssh/config
If you get a result, check this file for erroneous information. If no file exists, do the following:
$ echo "Host bitbucket.org" >> ~/.ssh/config
$ echo " IdentityFile ~/.ssh/id_rsa" >> ~/.ssh/config
Confirm the contents:
$ cat ~/.ssh/config
Host bitb...
Implement C# Generic Timeout
...ppedAction.BeginInvoke(null, null);
if (result.AsyncWaitHandle.WaitOne(timeoutMilliseconds))
{
wrappedAction.EndInvoke(result);
}
else
{
threadToKill.Abort();
throw new TimeoutException();
}
}
}
...
Find MongoDB records where array field is not empty
...cs with an existing list field, but then has to filter out the empty lists one by one.
MacBook-Pro(mongod-3.0.14) test> db.doc.find({'nums': { $exists: true, $ne: [] }}).count()
5
MacBook-Pro(mongod-3.0.14) test> db.doc.find({'nums': { $exists: true, $ne: [] }}).explain('executionStats').exec...
Better way of incrementing build number?
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I've messed around with a lot of the answers on this question, and none of them quite satisfied me. However, I finally came up with a mixture that I really like!
We simply set the version number for the built product to the number of Git commits. This won't mess with your source control, sinc...