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How to change the background color of the options menu?
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TheITTheIT
10.3k33 gold badges5353 silver badges5252 bronze badges
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How can I add new array elements at the beginning of an array in Javascript?
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2943
Use unshift. It's like push, except it adds elements to the beginning of the array instead of th...
Bootstrap 3: pull-right for col-lg only
New to bootstrap 3.... In my layout I have:
13 Answers
13
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Creating a new column based on if-elif-else condition
...df['C'] = df.apply(f, axis=1)
In [2]: df
Out[2]:
A B C
a 2 2 0
b 3 1 1
c 1 3 -1
Of course, this is not vectorized so performance may not be as good when scaled to a large number of records. Still, I think it is much more readable. Especially coming from a SAS background.
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Overloading Macro on Number of Arguments
I have two macros FOO2 and FOO3 :
8 Answers
8
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How to use arguments from previous command?
...w see:
$ echo a
without pressing Enter yet, do the following
Press Alt-3 Alt-Ctrl-y
Press Alt-- 2 Alt-Ctrl-y
Now you will see:
$ echo ace
By the way, you could have put the echo on the line by selecting argument 0:
Press Alt-0 Alt-Ctrl-y
Edit:
To answer the question you added to your or...
ActiveRecord, has_many :through, and Polymorphic Associations
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3 Answers
3
Active
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how to check redis instance version?
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310
$ redis-server --version
gives you the version.
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C default arguments
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edited Aug 2 '13 at 20:44
answered Sep 24 '09 at 14:40
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python dataframe pandas drop column using int
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frederikf
333 bronze badges
answered Nov 30 '13 at 15:06
Roman PekarRoman Pekar
86.7k252...