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How do I search within an array of hashes by hash values in ruby?
...@fathers.select {|father| father["age"] > 35 }
# => [ { "age" => 40, "father" => "Bob" },
# { "age" => 50, "father" => "Batman" } ]
Per the documentation, it "returns an array containing all elements of [the enumerable, in this case @fathers] for which block is not false."
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ActiveRecord, has_many :through, and Polymorphic Associations
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edited Dec 5 '11 at 9:09
answered Nov 5 '09 at 23:53
Em...
Piping buffer to external command in Vim
...n Kugelman
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Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?
...y than the following to check to see if a string is nil OR has a length of 0 in Ruby?
16 Answers
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How can I add an element after another element?
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edited Apr 13 '14 at 15:07
T J
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answered Fe...
Ignore .pyc files in git repository
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answered Apr 5 '11 at 11:50
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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Create whole path automatically when writing to a new file
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440
Something like:
File file = new File("C:\\user\\Desktop\\dir1\\dir2\\filename.txt");
file.getPa...
Why can lambdas be better optimized by the compiler than plain functions?
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edited Dec 5 '12 at 14:03
answered Dec 5 '12 at 11:43
Ko...
How to get the parents of a Python class?
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240
Use the following attribute:
cls.__bases__
From the docs:
The tuple of base classes of a ...
How can I use map and receive an index as well in Scala?
...")
scala> ls.zipWithIndex.foreach{ case (e, i) => println(i+" "+e) }
0 Mary
1 had
2 a
3 little
4 lamb
From: http://www.artima.com/forums/flat.jsp?forum=283&thread=243570
You also have variations like:
for((e,i) <- List("Mary", "had", "a", "little", "lamb").zipWithIndex) println(i+"...