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Get the last item in an array
... @mvmn i did a benchmark a long time ago, throughput was around one or two million calls per second on a single 2.4ghz thread. so unless you have solve problems you shouldn't solve in JS anyways, it won't be noticable (iirc slowdown compared to arr[arr.length-1] was 50-100x)
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How to reload apache configuration for a site without restarting apache
I have edited the variable AllowOverride for one of my websites in sites-enabled directory. How do I reload the new configuration without restarting apache? Is it possible?
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Sort a Map by values
... what you want if you have multiple keys mapping to the same value -- only one of those keys will appear in the sorted result.
– Maxy-B
Nov 24 '11 at 4:37
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What is a loop invariant?
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There is one thing that many people don't realize right away when dealing with loops and invariants. They get confused between the loop invariant, and the loop conditional ( the condition which controls termination of the loop ).
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Why does AuthorizeAttribute redirect to the login page for authentication and authorization failures
... then the compiler will automatically pick it up instead of MVC's standard one. Of course, you could always give the attribute a new name if you'd rather take that approach.
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = true)]
public class Autho...
Is there an opposite of include? for Ruby Arrays?
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readable for one statement. if many then better use negate ! or add your own method to ruby array class.
– Renars Sirotins
May 26 '14 at 12:17
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What does OSGi solve?
...ut OSGi , but I don't really see the big picture. It says that it's a component-based platform, and that you can reload modules at runtime. Also the "practical example" given everywhere is the Eclipse Plugin Framework.
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Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
...ng as a zero length file) as /tmp/mysql.sock or /var/mysql/mysql.sock, but one or more apps is looking in the other location for it. Find out with this command:
ls -l /tmp/mysql.sock /var/mysql/mysql.sock
Rather than move the socket, edit config files, and have to remember to keep edited files lo...
Fast permutation -> number -> permutation mapping algorithms
... the fourth position, which would be index 3, but it's the third remaining one, so we assign it 2.
c ends up at the first remaining position, which is always 0.
d ends up at the last remaining position, which (out of only two remaining positions) is 1.
e ends up at the only remaining position, inde...
How to find nth occurrence of character in a string?
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Apart from the "off-by-one" error, there is another great positive in @Jon Skeet's solution - With a minor tweak (reversing the loop), you can have the "nth occurrence from the last" as well.
– Karan Chadha
M...