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What is the best comment in source code you have ever encountered? [closed]
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In Ruby, is there an Array method that combines 'select' and 'map'?
...ia as a postfix if. compact gets rid of the nils.
jruby-1.5.0 > [1,1,1,2,3,4].map{|n| n*3 if n==1}
=> [3, 3, 3, nil, nil, nil]
jruby-1.5.0 > [1,1,1,2,3,4].map{|n| n*3 if n==1}.compact
=> [3, 3, 3]
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip.
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Bash script to receive and repass quoted parameters
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What is the use of a private static variable in Java?
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Of course it can be accessed as ClassName.var_name, but only from inside the class in which it i...
Gem::LoadError for mysql2 gem, but it's already in Gemfile
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If you have this error when upgrading to rails 4.2.4 (also with rails 4.1.5) try using this ve...
How to detect Safari, Chrome, IE, Firefox and Opera browser?
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24 Answers
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How to get year/month/day from a date object?
alert(dateObj) gives Wed Dec 30 2009 00:00:00 GMT+0800
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