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Technically, why are processes in Erlang more efficient than OS threads?
...y designed to be optimal in the case where there are fewer of them (of the order of the number of CPU cores) and where they are doing more significant amounts of processing each.
– Donal Fellows
May 12 '10 at 12:14
...
How can you find and replace text in a file using the Windows command-line environment?
...tever is needed. Also beware, if you target UTF8, it may introduce a Byte Order Mark at the beginning of the file that did not appear in the original.
– Wyck
Mar 28 '14 at 17:23
7...
Set element focus in angular way
...
Another option would be to use Angular's built-in pub-sub architecture in order to notify your directive to focus. Similar to the other approaches, but it's then not directly tied to a property, and is instead listening in on it's scope for a particular key.
Directive:
angular.module("app").direc...
Why are quaternions used for rotations?
...: Normalization! Ghram-Shmit is asymmetrical, which does not give a higher order accurate answer when doing differential equations. More sophisticated methods are very complex and expensive.
Axis (angle = length of axis)
Minor advantage: Small.
Moderate disadvantage: Multiplication and applying to ...
Checking if a variable is not nil and not zero in ruby
...
You could do this:
if (!discount.nil? && !discount.zero?)
The order is important here, because if discount is nil, then it will not have a zero? method. Ruby's short-circuit evaluation should prevent it from trying to evaluate discount.zero?, however, if discount is nil.
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
...ry useful for me to create a custom exception and overwrite SaveChanges in order to throw this new exception.
The custom exception type looks like this:
public class FormattedDbEntityValidationException : Exception
{
public FormattedDbEntityValidationException(DbEntityValidationException inner...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
... asking whether you are willing to accept them, 2) it must set a cookie in order to save your cookie preferences, and 3) it states that the site will not control 3rd party cookies, which is in direct violation of the spirit if not the letter of the EU directive. I suspect that the Beebs will get sm...
How do I measure time elapsed in Java? [duplicate]
...
Which types to use in order to accomplish this in Java?
The short answer is a long. Now, more on how to measure...
System.currentTimeMillis()
The "traditional" way to do this is indeed to use System.currentTimeMillis():
long startTime = Syste...
How to throw a C++ exception
...lt;< "main - end" << endl;
return 0;
}
NOTE:
0) The proper order should be vice-versa, i.e.- first you catch (const MyException& e) which is followed by catch (const std::exception& e).
1) As you can see, when you run the program as is, the first catch clause will be execute...
Why are C character literals ints instead of chars?
...on the endianness of the CPU one or other would need shifting into the low order byte.
Some CPUs may require a memory-aligned read, which means that the lowest address involved must be a multiple of the data size: you might be able to read from addresses 24 and 25, but not 27 and 28.
So, a compile...