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Does Ruby regular expression have a not match operator like “!~” in Perl?
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AFAIK (?!xxx) is supported:
2.1.5 :021 > 'abc1234' =~ /^abc/
=> 0
2.1.5 :022 > 'def1234' =~ /^abc/
=> nil
2.1.5 :023 > 'abc1234' =~ /^(?!abc)/
=> nil
2.1.5 :024 > 'def1234' =~ /^(?!abc)/
=> 0
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Does git return specific return error codes?
...your hook exit code.
– Novice C
Oct 21 '16 at 0:45
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Export Postgresql table data using pgAdmin
... Frank HeikensFrank Heikens
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8
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How to retrieve Request Payload
...er applies.
– Ikke
Dec 17 '12 at 11:21
If using Laravel simply create a helper function that 1. retrieves this string ...
Why there is no “Home” button in iPad simulator in iOS 5.1 SDK?
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edited Nov 7 '16 at 21:06
Jason
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answered M...
What's the (hidden) cost of Scala's lazy val?
...ing is OK.
– iirekm
Sep 28 '11 at 8:21
8
So, as of scala 2.10, what is the current implementation...
Multiple aggregations of the same column using pandas GroupBy.agg()
...y
1 0.036901 0.369012
or as a dictionary:
In [21]: df.groupby('dummy').agg({'returns':
{'Mean': np.mean, 'Sum': np.sum}})
Out[21]:
returns
Mean Sum
dummy
1 0.036901 0.369012
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Usage of sys.stdout.flush() method
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answered Apr 4 '12 at 21:35
Haldean BrownHaldean Brown
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Unique combination of all elements from two (or more) vectors
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answered Jun 20 '18 at 21:37
hypothesishypothesis
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How to remove a field from params[:something]
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Rails 4/5 - edited answer
(see comments)
Since this question was written newer versions of Ra...