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In Ruby, is there an Array method that combines 'select' and 'map'?
...lection criteria 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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Git: Correct way to change Active Branch in a bare repository?
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answered Jul 21 '10 at 17:22
VonCVonC
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Is there a difference between “throw” and “throw ex”?
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Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
I have been googling for about 90 minutes now and still don't have an answer to this. Where do I set default_url_options ? I've already set it for config.action_mailer.default_url_options to solve this same bug elsewhere, but now I'm getting this error when trying to use a URL helper inside an ...
How do I find the next commit in git? (child/children of ref)
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answered Mar 26 '12 at 10:07
Tim HuntTim Hunt
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Get the subdomain from a URL
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edited Apr 24 '19 at 20:40
Michael
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What is “git remote add …” and “git push origin master”?
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edited Jun 20 at 9:12
Community♦
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answered Apr 11 '11 at 6:04
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When using Spring Security, what is the proper way to obtain current username (i.e. SecurityContext)
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If you are using Spring 3, the easiest way is:
@RequestMapping(method = RequestMethod.GET)
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How to have conditional elements and keep DRY with Facebook React's JSX?
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edited Apr 15 '15 at 20:15
Michal Kordas
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How to import a .cer certificate into a java keystore?
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edited Feb 25 '19 at 21:40
Lior Bar-On
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