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What is the use of static constructors?

...required configuration data into readonly fields, etc. It is run automatically by the runtime the first time it is needed (the exact rules there are complicated (see "beforefieldinit"), and changed subtly between CLR2 and CLR4). Unless you abuse reflection, it is guaranteed to run at most once (eve...
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#ifdef replacement in the Swift language

... After i set the custom flag -DLOCAL, on my #if LOCAl #else #endif, it falls into the #else section. I duplicated the original target AppTarget and rename it to AppTargetLocal & set its custom flag. – Perwyl Liu Jul 20 '16 at 6:48 ...
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Mocking python function based on input arguments

...f side_effect is a function then whatever that function returns is what calls to the mock return. The side_effect function is called with the same arguments as the mock. This allows you to vary the return value of the call dynamically, based on the input: >>> def side_effect(value): ...
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How do you run a Python script as a service in Windows?

...mport socket class AppServerSvc (win32serviceutil.ServiceFramework): _svc_name_ = "TestService" _svc_display_name_ = "Test Service" def __init__(self,args): win32serviceutil.ServiceFramework.__init__(self,args) self.hWaitStop = win32event.CreateEvent(None,0,0,None) ...
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Can't get Gulp to run: cannot find module 'gulp-util'

On Windows 7, I've installed gulp as explained here: http://markgoodyear.com/2014/01/getting-started-with-gulp/ : 10 Answe...
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Deep copy of a dict in python

... @BuvinJ The issue is that json.loads doesn't solve the problem for all use cases where python dict attributes are not JSON serializable. It may help those who are only dealing with simple data structures, from an API for example, but I don't think it's enough of a solution to fully answer th...
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Why declare a struct that only contains an array in C?

... It allows you to pass the array to a function by value, or get it returned by value from a function. Structs can be passed by value, unlike arrays which decay to a pointer in these contexts. ...
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Why use Ruby's attr_accessor, attr_reader and attr_writer?

...write classes which will work correctly no matter how their public API is called. class Person attr_accessor :age ... end Here, I can see that I may both read and write the age. class Person attr_reader :age ... end Here, I can see that I may only read the age. Imagine that it is set ...
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How to have the cp command create any necessary folders for copying a file to a destination [duplica

... the mkdir/cp command above. It just creates a single level of folder. Actually I'm not sure when it can be useful. – Penghe Geng Apr 13 '15 at 14:30 ...
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Adjust UILabel height to text

...ne about some println's or just a line with only comments (then it says EXC_BAD_ACCESS code=2 as well) – TheBurgerShot Aug 8 '14 at 11:52 6 ...