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Wrapping null-returning method in Java with Option in Scala?
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The Option companion object's apply method serves as a conversion function from nullable referen...
How can I round down a number in Javascript?
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edited Sep 30 '19 at 10:01
Gerrit Bertier
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Selecting with complex criteria from pandas.DataFrame
...nt(1, 9)*100 for x in range(10)]})
>>> df
A B C
0 9 40 300
1 9 70 700
2 5 70 900
3 8 80 900
4 7 50 200
5 9 30 900
6 2 80 700
7 2 80 400
8 5 80 300
9 7 70 800
We can apply column operations and get boolean Series objects:
>>> df["B"] > 50
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how to get first three characters of an NSString?
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sed: print only matching group
...eplaced with the contents of the group
echo "foo bar <foo> bla 1 2 3.4" |
sed -n 's/.*\([0-9][0-9]*[\ \t][0-9.]*[ \t]*$\)/\1/p'
2 3.4
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How to convert list to string [duplicate]
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How to jump to previous and last cursor in Sublime Text 3? [closed]
...back and forward through the cursor position history, then in Sublime Text 3 it's built in via the GoTo menu or keyboard shortcuts:
Jump Back and Jump Forward – Jump Back allows you to go to previous
editing positions. This goes hand in hand with Goto Definition: you
can now inspect a symb...
Splitting string with pipe character (“|”) [duplicate]
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answered Feb 3 '14 at 10:20
devnulldevnull
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Remove a prefix from a string [duplicate]
... return text # or whatever
As noted by @Boris and @Stefan, on Python 3.9+ you can use
text.removeprefix(prefix)
with the same behavior.
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Getting list of lists into pandas DataFrame
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