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In Python, how do I create a string of n characters in one line of code?
...ly, of course;-).
Other ways to "make a string of 10 characters": 'x'*10 (all the ten characters will be lowercase xs;-), ''.join(chr(ord('a')+i) for i in xrange(10)) (the first ten lowercase letters again), etc, etc;-).
sh...
How to print full stack trace in exception?
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I usually use the .ToString() method on exceptions to present the full exception information (including the inner stack trace) in text:
catch (MyCustomException ex)
{
Debug.WriteLine(ex.ToString());
}
Sample output:
Consol...
How can I make gdb save the command history?
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@Frank How about if I type n then I arrow up key, I get all previous commands that start with n.
– SIFE
Jan 27 '13 at 0:09
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Show filename and line number in grep output
...ly and used this example command: grep -Hnor "localhost" . This listet up all matches with file name and line number, short and concise.
– Tore Aurstad
Sep 10 '18 at 8:25
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How to optimize imports automatically after each save in IntelliJ IDEA
I want to learn how can I automatically optimize imports after each save as we do Eclipse( save actions ).
4 Answers
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What is `git diff --patience` for?
...nly considers the longest common subsequence of the signature lines:
Find all lines which occur exactly once on both sides, then do longest common subsequence on those lines, matching them up.
When should you use patience diff? According to Bram, patience diff is good for this situation:
The re...
Sorting data based on second column of a file
...ered Jun 22 '11 at 11:18
Matt RyallMatt Ryall
8,02355 gold badges2121 silver badges1818 bronze badges
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Getting the first and last day of a month, using a given DateTime object
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@KarlGjertsen, you want to see picky... I personally do < firstDayOfNextMonth instead of <= lastDayOfMonth. That way it'll always work regardless of the granularity. (I'm sure ticks will be fine, but who know what the future brings... nanoticks?)
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Socket.IO Authentication
I am trying to use Socket.IO in Node.js, and am trying to allow the server to give an identity to each of the Socket.IO clients. As the socket code is outside the scope of the http server code, it doesn't have easy access to the request information sent, so I'm assuming it will need to be sent up d...
How to get the number of Characters in a String?
..."), utf8.RuneCountInString("世界"))
}
Phrozen adds in the comments:
Actually you can do len() over runes by just type casting.
len([]rune("世界")) will print 2. At leats in Go 1.3.
And with CL 108985 (May 2018, for Go 1.11), len([]rune(string)) is now optimized. (Fixes issue 24923)
The compile...