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Ruby: What is the easiest way to remove the first element from an array?
...rdSjoerd
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Extract first item of each sublist
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You could use zip:
>>> lst=[[1,2,3],[11,12,13],[21,22,23]]
>>> zip(*lst)[0]
(1, 11, 21)
Or, Python 3 where zip does not produce a list:
>>> list(zip(*lst))[0]
(1, 11, 21)
Or,
>>> next(zip(*lst))
(1, 11, 21)
Or, (my favorite) use numpy:
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What are the aspect ratios for all Android phone and tablet devices?
... how much difference there is between the "widest" 4x3 and the "narrowest" 21x9 (which I have not yet put in the graphic). Does that answer your question?
– Bartek Lipinski
May 17 at 9:53
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How to hide databases that I am not allowed to access
...quotes!
– luigi7up
Jun 23 '13 at 16:21
5
how it is done in pgadmin4? There is no advanced tab in ...
Cost of len() function
...n Machin
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With bash, how can I pipe standard error into another process?
...it up.
– paxdiablo
Oct 20 '12 at 12:21
Good point, @ovgolovin, I can't believe no-one's picked that up in seven months...
Add to Array jQuery
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edited Jun 21 '13 at 19:38
answered May 2 '11 at 20:01
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Regular expression search replace in Sublime Text 2
...$0?
– Skylar Saveland
Mar 30 '13 at 21:58
11
No, $0 is not used as a back-reference in a regular ...
Base64: What is the worst possible increase in space usage?
..., for a 16kB array, the base-64 representation will be ceil(16*1024/3)*4 = 21848 bytes long ~= 21.8kB.
A rough approximation would be that the size of the data is increased to 4/3 of the original.
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Append column to pandas dataframe
... a cat :)
– BenDundee
Dec 16 '13 at 21:47
@BenDundee I see. That method discards the unique index and has even weirder...