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MAC addresses in JavaScript
...ozilla in general) gets higher privileges than normal JS (but it is fairly complicated to set up)
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Benefits of header-only libraries
...ally do so to hide implementation details, and distribute the library as a combination of headers and libraries (lib, dll's or .so files). These of course have to be compiled for all different operating systems/versions you offer support.
You could also distribute the implementation files, but that...
PostgreSQL disable more output
...manual.
On older versions of Pg it was just a toggle, so \pset pager
To completely suppress query output, use \o /dev/null in your psql script.
To suppress psql's informational output, run it with -q or set QUIET=1 in the environment.
To produce results and throw them away you can redirect st...
Regular expression search replace in Sublime Text 2
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Asynchronous shell commands
I'm trying to use a shell script to start a command. I don't care if/when/how/why it finishes. I want the process to start and run, but I want to be able to get back to my shell immediately...
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PermGen elimination in JDK 8
...hat were limited by PermGen.
The Permanent Generation (PermGen) space has completely been removed and is kind of replaced by a new space called Metaspace.
The consequences of the PermGen removal is that obviously the PermSize and MaxPermSize JVM arguments are ignored and you will never get a java.l...
Where to use EJB 3.1 and CDI?
...Ultimately, EJB and CDI share the same fundamental design of being proxied components. When you get a reference to an EJB or CDI bean, it isn't the real bean. Rather the object you are given is a fake (a proxy). When you invoke a method on this fake object, the call goes to the container who will...
Is there a CSS selector for the first direct child only?
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Difference between Repository and Service Layer?
...user has access to.
In ASP.NET MVC + EF + SQL SERVER, I have this flow of communication:
Views <- Controllers -> Service layer -> Repository layer -> EF -> SQL Server
Service layer -> Repository layer -> EF This part operates on models.
Views <- Controllers -&g...
Covariance, Invariance and Contravariance explained in plain English?
...elation. The simplest example is assignment. The statement
x = y;
will compile only if typeof(y) ≤ typeof(x). That is, we have just learned that the statements
ArrayList<String> strings = new ArrayList<Object>();
ArrayList<Object> objects = new ArrayList<String>();
w...