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Will strlen be calculated multiple times if used in a loop condition?
...hange length during the iteration. If it might, then you'll need to either call strlen() each time, or handle it through more complicated logic.
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How do I use reflection to invoke a private method?
There are a group of private methods in my class, and I need to call one dynamically based on an input value. Both the invoking code and the target methods are in the same instance. The code looks like this:
...
Xcode 6 - How to pick signing certificate/provisioning profile for Ad-Hoc distribution?
...ommand line "xcodebuild" tool script, which is preinstalled with Xcode 6 (didn't need to re-install Xcode 5).
http://www.thecave.com/2014/09/16/using-xcodebuild-to-export-a-ipa-from-an-archive/
Script in terminal:
xcodebuild -exportArchive -archivePath $projectname.xcarchive -exportPath $projectn...
Javascript “this” pointer within nested function
...n JavaScript the this object is really based on how you make your function calls.
In general there are three ways to setup the this object:
someThing.someFunction(arg1, arg2, argN)
someFunction.call(someThing, arg1, arg2, argN)
someFunction.apply(someThing, [arg1, arg2, argN])
In all of the abo...
Get week of year in JavaScript like in PHP
...te is: Working with weeks.
Edit
Here is some code based on the links provided and that posted eariler by Dommer. It has been lightly tested against results at http://www.merlyn.demon.co.uk/js-date6.htm#YWD. Please test thoroughly, no guarantee provided.
Edit 2017
There was an issue with dates du...
What are the uses of “using” in C#?
... // Check for a null resource.
if (myRes != null)
// Call the object's Dispose method.
((IDisposable)myRes).Dispose();
}
}
C# 8 introduces a new syntax, named "using declarations":
A using declaration is a variable declaration preceded by the using keyword...
What is the Swift equivalent of respondsToSelector?
...e what you need with the ? optional unwrapper operator. This allows you to call a method on an object if and only if the object exists (not nil) and the method is implemented.
In the case where you still need respondsToSelector:, it is still there as part of the NSObject protocol.
If you are calli...
Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?
...ationDidBecomeActiveNotification and specify which method that you want to call when that notification gets sent to your application.
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(someMethod:)
...
Constructor function vs Factory functions
... function is used with the new keyword (which causes JavaScript to automatically create a new object, set this within the function to that object, and return the object):
var objFromConstructor = new ConstructorFunction();
A factory function is called like a "regular" function:
var objFromFactor...
warning this call is not awaited, execution of the current method continues
...stackoverflow.com/a/12145047/928483.
Exceptions thrown during an async call that is not awaited will be lost. To get rid of this warning, you should assign the Task return value of the async call to a variable. This ensures you have access to any exceptions thrown, which will be indicated in the...