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Painless way to install a new version of R?

...or Thomas 91.9k1515 gold badges126126 silver badges235235 bronze badges answered Oct 20 '10 at 11:16 Joris MeysJoris Meys 95k2626 ...
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Find the extension of a filename in Ruby

...gt; accepted_formats = [".txt", ".pdf"] => [".txt", ".pdf"] irb(main):003:0> File.extname("example.pdf") # get the extension => ".pdf" irb(main):004:0> accepted_formats.include? File.extname("example.pdf") => true irb(main):005:0> accepted_formats.include? File.extname("example.txt...
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How do you add CSS with Javascript?

... answered Apr 1 '09 at 23:57 bobincebobince 485k9999 gold badges611611 silver badges797797 bronze badges ...
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SQL WHERE ID IN (id1, id2, …, idn)

...ormance like with IN. There's still the readability issue though... Option 3 is simply horrible performance-wise. It sends a query every loop and hammers the database with small queries. It also prevents it from using any optimizations for "value is one of those in a given list" ...
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Default behavior of “git push” without a branch specified

... community wiki 15 revs, 11 users 34%UncleZeiv 11 ...
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What is the difference between t.belongs_to and t.references in rails?

... answered Oct 17 '11 at 14:34 muffinistamuffinista 6,28022 gold badges2626 silver badges2323 bronze badges ...
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Why does Razor _layout.cshtml have a leading underscore in file name?

In the default ASP.NET MVC 3 project, layout & partial cshtml files start with an underscore 5 Answers ...
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Python: most idiomatic way to convert None to empty string?

... answered Jun 23 '09 at 19:28 TriptychTriptych 180k3131 gold badges140140 silver badges167167 bronze badges ...
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How to output numbers with leading zeros in JavaScript [duplicate]

... answered Jun 8 '10 at 15:33 InfinitiesLoopInfinitiesLoop 12.5k33 gold badges2828 silver badges3333 bronze badges ...
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indexOf method in an object array?

... | edited Feb 1 '18 at 13:40 thomasb 5,00744 gold badges5454 silver badges8282 bronze badges answered ...