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What are bitwise operators?
I'm someone who writes code just for fun and haven't really delved into it in either an academic or professional setting, so stuff like these bitwise operators really escapes me.
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How to check if a particular service is running on Ubuntu
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I don't have an Ubuntu box, but on Red Hat Linux you can see all running services by running the following command:
service --status-all
On the list the + indicates the service is running, - indicates service is not running, ? indicates the service state cannot be determined.
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Removing non-repository files with git?
...es. By default, it will only print what it would have removed, without actually removing them.
Given the -f flag to remove the files, and the -d flag to remove empty directories as well :
git clean -df
Also removing ignored files :
git clean -dfx
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Peak signal detection in realtime timeseries data
...andard deviations away from some moving mean, the algorithm signals (also called z-score). The algorithm is very robust because it constructs a separate moving mean and deviation, such that signals do not corrupt the threshold. Future signals are therefore identified with approximately the same accu...
Find the number of downloads for a particular app in apple appstore [closed]
...ed on app ranking (which is available publicly). The best you'll get is a ball park estimate.
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Forcing a WPF tooltip to stay on the screen
...(after nearly 6 years years, sorry) as the correct answer because this actually works on all supported versions of Windows and keeps it open for 49 days, which should be long enough :p
– TimothyP
Mar 30 '15 at 9:12
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Limit text length to n lines using CSS
...limit a text length to "n" lines using CSS (or cut it when overflows vertically).
13 Answers
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Pandas DataFrame column to list [duplicate]
...answered May 20 '14 at 0:09
AkavallAkavall
62.1k3838 gold badges170170 silver badges215215 bronze badges
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Which are more performant, CTE or temporary tables?
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Temp tables also allows for Indexes and even Statistics which are sometimes necessary, while a CTE does not.
– CodeCowboyOrg
Sep 4 '14 at 15:30
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CSS fixed width in a span
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display: inline-block;
width: 50px;
}
</style>
This works on all browsers apart from FF2 and below.
Firefox 2 and lower don't support this
value. You can use -moz-inline-box,
but be aware that it's not the same as
inline-block, and it may not work as
you expect in some situ...