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How do I use the conditional operator (? :) in Ruby?
...t for precedence issues. Both are expressions.
Examples:
puts (if 1 then 2 else 3 end) # => 2
puts 1 ? 2 : 3 # => 2
x = if 1 then 2 else 3 end
puts x # => 2
Note that in the first case parenthesis are required (otherwise Ruby is confused because i...
Argparse: Required arguments listed under “optional arguments”?
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327
Parameters starting with - or -- are usually considered optional. All other parameters are posi...
How many GCC optimization levels are there?
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142
To be pedantic, there are 8 different valid -O options you can give to gcc, though there are som...
unable to copy/paste in mingw shell
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215
Right-click on the title bar of the command window and select 'Properties', then on the 'Optio...
Is it possible to set private property via reflection?
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t.GetProperty("CreatedOn")
.SetValue(obj, new DateTime(2009, 10, 14), null);
EDIT: Since the property itself is public, you apparently don't need to use BindingFlags.NonPublic to find it. Calling SetValue despite the the setter having less accessibility still does what you exp...
Why does Python code run faster in a function?
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answered Jun 28 '12 at 10:15
KatrielKatriel
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How do HTML parses work if they're not using regexp?
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QuentinQuentin
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ActiveRecord: List columns in table from console
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215
This will list the column_names from a table
Model.column_names
e.g. User.column_names
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Is there a UIView resize event?
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edited May 23 '17 at 12:34
Community♦
111 silver badge
answered Oct 22 '10 at 20:38
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Algorithm to find Largest prime factor of a number
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