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How to understand nil vs. empty vs. blank in Ruby
...false.blank? == true
[].blank? == true
{}.blank? == true
"".blank? == true
5.blank? == false
0.blank? == false
.blank? also evaluates true on strings which are non-empty but contain only whitespace:
" ".blank? == true
" ".empty? == false
Rails also provides .present?, which returns the negati...
Setting PATH environment variable in OSX permanently
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NitishNitish
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How to stop line breaking in vim
...rian RasmussenBrian Rasmussen
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Function overloading in Javascript - Best practices
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S.Serpooshan
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answered Jan 19 '09 at 13:32
epascarelloepasc...
How to print out more than 20 items (documents) in MongoDB's shell?
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answered Sep 14 '10 at 1:45
ThiloThilo
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Get the first item from an iterable that matches a condition
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In Python 2.6 or newer:
If you want StopIteration to be raised if no matching element is foun...
How can I run PowerShell with the .NET 4 runtime?
...te ALL applications to .NET 4.0, even applications using .net 2 and .net 3.5
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Why does “pip install” inside Python raise a SyntaxError?
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answered Dec 17 '11 at 21:51
Lennart RegebroLennart Regebro
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PHP's array_map including keys
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answered Oct 23 '12 at 17:51
eiseis
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How to set proxy for wget?
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amaksramaksr
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