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ReSharper warns: “Static field in generic type”
...look like. Once you substitute T with something concrete, say int, string, etc., you get a class. It is perfectly legal to have a static member (field, property, method) declared in your newly created class (as in any other class) and no sign of any error here.
It would be somewhat suspicious, at f...
Compelling examples of custom C++ allocators?
...ere it was absolutely necessary for correctness, performance, scalability, etc? Any really clever examples?
16 Answers
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Python - 'ascii' codec can't decode byte
...ely choose whichever keymap you want instead of en_EN.) You can also edit /etc/locale.conf (or whichever file governs the locale definition in your system) to correct this.
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PostgreSQL database default location on Linux
...ostgresql/9.4/bin/postgres -D /var/lib/postgresql/9.4/main -c config_file=/etc/postgresql/9.4/main/postgresql.conf
so apparently /var/lib/postgresql/9.4/main.
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I want to get the type of a variable at runtime
...ant to convert the type into a value, so you can store it, pass it around, etc. This involves reflection, and you'll be using either ClassTag or a TypeTag. For example:
val x: Any = 5
import scala.reflect.ClassTag
def f[T](v: T)(implicit ev: ClassTag[T]) = ev.toString
f(x) // returns the string "An...
How to delete migration files in Rails 3
...ll environments it already ran (production, development, testing, staging, etc) before deleting its file. That's also why I wrote that it's safer to just create another migration to revert that old one, once it's already ran on production.
– Fábio Batista
Apr ...
How to run test methods in specific order in JUnit4?
...to maintain, will break the ability to run tests individually (obviously), etc.
That being said, if you really want to go in this direction, consider using TestNG since it supports running tests methods in any arbitrary order natively (and things like specifying that methods depends on groups of m...
What's the yield keyword in JavaScript?
...e readable, easy to delete, and no need to fiddle with indents, functions, etc.
An interesting observation is that in this example, yield is actually just a keyword you can put before a function with a callback.
function* main() {
console.log(yield function(cb) { cb(null, "Hello World") })
}
W...
What are the best practices for catching and re-throwing exceptions?
...lass ComponentInitException extends Exception {
// public constructors etc as in Exception
}
class Component {
public function __construct() {
try {
$connect = new CONNECT($db, $user, $password, $driver, $host);
}
catch (Exception $e) {
throw ...
is there a css hack for safari only NOT chrome?
... by posting a comment about it, Post Your Browser and Device (MacBook/IPad/etc... with both browser and OS version numbers!)
Claiming none of these work is not accurate (and actually not even possible.) Many of these are not really 'hacks' but code built into versions of Safari by Apple. More info i...