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Shell equality operators (=, ==, -eq)
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It's the other way around: = and == are for string comparisons, -eq is for numeric ones. -eq is ...
Why can't I use Docker CMD multiple times to run multiple services?
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answered May 18 '14 at 11:17
qkrijgerqkrijger
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Why does changing the returned variable in a finally block not change the return value?
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What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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– Franklin Yu
May 21 '19 at 14:37
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Haskell: Lists, Arrays, Vectors, Sequences
...m old values as if you had modified the old values.
newList oldList = 7 : drop 5 oldList
doesn't modify old list, and it doesn't have to copy it. So even if oldList is incredibly long, this "modification" will be very fast. Similarly
newSequence newValue oldSequence = Sequence.update 300...
Is there documentation for the Rails column types?
...ESTAMP datatype is stored as a unix timestamp. Its valid range goes from 1970 to 2038, and the time is stored as the number of seconds that have elapsed since the last epoch, which is supposedly standard, but in practice can differ from system to system. Recognizing that relative time was not a good...
Remove all values within one list from another list? [duplicate]
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node.js child process - difference between spawn & fork
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edited Jul 2 '18 at 19:17
bjb568
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answered Ju...
PostgreSQL return result set as JSON array?
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276
TL;DR
SELECT json_agg(t) FROM t
for a JSON array of objects, and
SELECT
json_build_obj...