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Multiprocessing: How to use Pool.map on a function defined in a class?
...n spawns a process for each work item. The solution of "klaus se" below is more efficient.
– ypnos
Jul 12 '13 at 14:38
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Check if a variable is a string in JavaScript
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Why is it bad style to `rescue Exception => e` in Ruby?
...ion, it rescues from StandardError. You should generally specify something more specific than the default StandardError, but rescuing from Exception broadens the scope rather than narrowing it, and can have catastrophic results and make bug-hunting extremely difficult.
If you have a situation whe...
Why is no one using make for Java?
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Casting vs using the 'as' keyword in the CLR
... right solution. That throws an exception immediately, which means that no more work is done under incorrect assumptions, and the exception correctly shows the type of bug.
// This will throw an exception if randomObject is non-null and
// refers to an object of an incompatible type. The cast is
//...
setTimeout or setInterval?
...essentially try to do the same thing, but the setInterval approach will be more accurate than the setTimeout approach, since setTimeout waits 1000ms, runs the function and then sets another timeout. So the wait period is actually a bit more than 1000ms (or a lot more if your function takes a long ti...
Batch file to delete files older than N days
...;number of days> -c "cmd /c del @path"
See forfiles documentation for more details.
For more goodies, refer to An A-Z Index of the Windows XP command line.
If you don't have forfiles installed on your machine, copy it from any Windows Server 2003 to your Windows XP machine at %WinDir%\sys...
SQL Server: Difference between PARTITION BY and GROUP BY
...ows returned results which can save you time as opposed to jumping through more learning hoops and time to learn Northwind
– Praxiteles
Jan 16 '16 at 10:18
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Singular or plural controller and helper names in Rails
...al names for controllers is just a convention.
Plural names usually sound more natural (especially for controllers that are tied directly to a specific model: User -> Users, etc.), but you can use whatever you want.
As for helpers, all helpers are available for all controllers by default, so te...
Throwing the fattest people off of an overloaded airplane.
...e heap. If we assume that passengers' weights will typically be 100 lbs or more, then it's unlikely that the heap will contain more than 30 items at any time.
The worst case would be if the passengers are presented in order from lowest weight to highest. That would require that every passenger be a...