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How can I find the number of days between two Date objects in Ruby?
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answered Dec 21 '10 at 17:47
Agile JediAgile Jedi
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Javascript Equivalent to PHP Explode()
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John HartsockJohn Hartsock
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T-SQL Cast versus Convert
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edited Mar 21 '14 at 12:23
answered Apr 1 '09 at 21:39
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Given a number, find the next higher number which has the exact same set of digits as the original n
...t place in O(n)).
An example will make this more clear:
123456784987654321
start with a number
123456784 987654321
^the first place from the right where the left-digit is less than the right
Digit "x" is 4
123456784 987654321
^find the smallest digit larger tha...
How to avoid reinstalling packages when building Docker image for Python projects?
...tainer 0d7cf71eb05e
Step 5 : CMD python /srv/run.py
---> Running in f25c21135010
---> 4ffab7bc66c7
Removing intermediate container f25c21135010
Successfully built 4ffab7bc66c7
As you can see above, this time docker uses cache during the build. Now, let's update requirements.txt:
# requirement...
Rails raw SQL example
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– Francio Rodrigues
Dec 17 '17 at 21:04
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show 2 more comments
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How do I capture the output into a variable from an external process in PowerShell?
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JNKJNK
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Powershell equivalent of bash ampersand (&) for forking/running background processes
...really annoying.
– CMCDragonkai
Apr 21 '14 at 22:48
1
thanks, great tip, been going around with a...
What is the rationale for fread/fwrite taking size and count as arguments?
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edited Nov 3 '17 at 21:00
Tommy
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answ...
Reorder levels of a factor without changing order of values
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121
Use the levels argument of factor:
df <- data.frame(f = 1:4, g = letters[1:4])
df
# f g
#...