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Replace first occurrence of pattern in a string [duplicate]
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edited Apr 18 '13 at 3:03
answered Jan 10 '12 at 19:34
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What is the use of interface constants?
...d declarations in it?
– ACV
Mar 21 '18 at 21:57
6
I agree with ACV. If the constant interface is ...
What is the easiest way to push an element to the beginning of the array?
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edited Sep 13 '18 at 16:05
answered May 22 '11 at 1:48
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Definition of a Balanced Tree
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edited Dec 18 '15 at 10:27
Sk8erPeter
6,16499 gold badges4242 silver badges6565 bronze badges
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When should I use a struct instead of a class?
...version.
– supercat
Jan 2 '13 at 16:18
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show 4 more comments
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django models selecting single field
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edited Mar 30 '18 at 13:25
Igor S
22433 silver badges1111 bronze badges
answered Sep 21 '11 a...
Determine when a ViewPager changes pages
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118
ViewPager.setOnPageChangeListener is deprecated now. You now need to use ViewPager.addOnPageCha...
How can I create an object and add attributes to it?
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edited Sep 13 '17 at 18:02
answered Aug 16 '15 at 15:13
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Find all records which have a count of an association greater than zero
...Comment.distinct.pluck :article_id
=> [43, 34, 45, 55, 17, 19, 1, 3, 4, 18, 44, 5, 13, 22, 16, 6, 53]
[11] pry(main)> _.size
=> 17
[12] pry(main)> Article.joins(:comments).size
=> 45
[13] pry(main)> Article.joins(:comments).distinct.size
=> 17
[14] pry(main)> Article.joins(:c...
invalid multibyte char (US-ASCII) with Rails and Ruby 1.9
...ngs/…
– Alok Swain
Apr 1 '15 at 7:18
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