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difference between collection route and member route in ruby on rails?
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413
A member route will require an ID, because it acts on a member. A collection route doesn't becau...
Disabling Minimize & Maximize On WinForm?
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edited Jun 11 '10 at 20:31
answered Jun 11 '10 at 20:19
H...
Does a UNIQUE constraint automatically create an INDEX on the field(s)?
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edited Dec 16 '19 at 16:23
informatik01
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answe...
Rails find_or_create_by more than one attribute?
...epak Mahakale
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answered Jun 15 '10 at 15:31
x1a4x1a4
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How is set() implemented?
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– Claudiu Creanga
Sep 21 '16 at 21:13
4
No, average case is O(1) but worst case is O(N) for hash ...
ASP.NET MVC 4 Custom Authorize Attribute with Permission Codes (without roles)
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answered Nov 8 '12 at 7:37
chaturachatura
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extract part of a string using bash/cut/split
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338
To extract joebloggs from this string in bash using parameter expansion without any extra proc...
How to remove a key from a Python dictionary?
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13 Answers
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Why were pandas merges in python faster than data.table merges in R in 2012?
... coerce character to
factor. Factors are still supported. Implements FR#1493, FR#1224
and (partially) FR#951.
New functions chmatch() and %chin%, faster versions of match()
and %in% for character vectors. R's internal string cache is
utilised (no hash table is built). They are about 4 times faster
t...
Can constructors throw exceptions in Java?
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356
Yes, constructors can throw exceptions. Usually this means that the new object is immediately ...