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Can I add extension methods to an existing static class?
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@tap - it's only an example, and the first one that came to mind. The single responsibility principle comes into play, though. Should the "container" actually be responsible for interpreting itself from the configuration file? Normally I simply have ConfigurationSec...
virtualenvwrapper and Python 3
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You can make virtualenvwrapper use a custom Python binary instead of the one virtualenvwrapper is run with. To do that you need to use VIRTUALENV_PYTHON variable which is utilized by virtualenv:
$ export VIRTUALENV_PYTHON=/usr/bin/python3
$ mkvirtualenv -a myproject myenv
Running virtualenv with ...
What is Rack middleware?
...ing around Rack Middleware - you should be able to find pre-built rack components to do all of the steps above and more. See the Rack GitHub wiki for a list of middleware.
What's Middleware?
Middleware is a dreadful term which refers to any software component/library which assists with but is not ...
The difference between fork(), vfork(), exec() and clone()
...ollowed by exec(), which discards the current memory map and creates a new one, it was a needless expense. Nowadays, fork() doesn't copy the memory; it's simply set as "copy on write", so fork()+exec() is just as efficient as vfork()+exec().
clone() is the syscall used by fork(). with some paramet...
Difference between Property and Field in C# 3.0+
... memory where data of the specified type is stored. A property represents one or two units of code that are executed to retrieve or set a value of the specified type. The use of these accessor methods is syntactically hidden by using a member that appears to behave like a field (in that it can app...
Use of class definitions inside a method in Java
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This is called a local class.
2 is the easy one: yes, a class file will be generated.
1 and 3 are kind of the same question. You would use a local class where you never need to instantiate one or know about implementation details anywhere but in one method.
A typica...
Getting current device language in iOS?
...egion of the device - not the currently selected language. These are often one and the same. However, if I am in North America and I set my language to Japanese, my region will still be English (United States). In order to retrieve the currently selected language, you can do:
NSString * language = ...
Really weird eclipse keyboard behavior/bug?
...s happened. I had to restore default key bindings (after writing down the ones that I had customized) and then restore my customized settings.
Makes me wonder what other key bindings have been reset and what did it. Frustrating but at least I can get back to coding.
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How to split a string at the first `/` (slash) and surround part of it in a ``?
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Thanks, Adil. Your answer is worth to give one up. Thanks.
– ankit suthar
Jun 22 '17 at 9:49
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define() vs. const
... define('FOO', 'BAR'); // Valid
}
Why would you want to do that anyway? One common application is to check whether the constant is already defined:
if (!defined('FOO')) {
define('FOO', 'BAR');
}
const accepts a static scalar (number, string or other constant like true, false, null, __FILE__...