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Why do we have map, fmap and liftM?
...askell 1.3 fmap was called map. This change was then reverted in Haskell 1.4 and fmap was introduced. The reason for this change was pedagogical; when teaching Haskell to beginners the very general type of map made error messages more difficult to understand. In my opinion this wasn't the right way ...
Escaping a forward slash in a regular expression
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edited Jul 24 '15 at 4:20
nhahtdh
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Is it possible to execute code once before all tests run?
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FWIW, you can use the AssemblyInitialize attribute to run code before all unit tests in an assem...
How to print the values of slices
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edited Aug 14 '15 at 5:35
answered Jun 30 '14 at 11:48
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How to center horizontally div inside parent div
... James GoodwinJames Goodwin
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Print commit message of a given commit in git
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It's not "plumbing", but it'll do exactly what you want:
$ git log --format=%B -n 1 <commit...
How to write a Ruby switch statement (case…when) with regex and backreferences?
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YossiYossi
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What is the session's “secret” option?
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HacknightlyHacknightly
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Rails filtering array of objects by attribute value
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Try :
This is fine :
@logos = @attachments.select { |attachment| attachment.file_type == 'logo...