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filtering NSArray into a new NSArray in Objective-C
...similar type you could add a method as a category of their base class that calls the function you're using for your criteria. Then create an NSPredicate object that refers to that method.
In some category define your method that uses your function
@implementation BaseClass (SomeCategory)
- (BOOL)m...
Does Java 8 provide a good way to repeat a value or function?
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@jwenting It really depends - typically with GUI stuff (Swing or JavaFX), that removes a lot of boiler plate due to anonymous classes.
– assylias
Aug 30 '13 at 12:12
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Convert Dictionary to semicolon separated string in c#
...(And if you're using .NET 4, or newer, then you can omit the final ToArray call.)
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shared_ptr to an array : should it be used?
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With C++17, shared_ptr can be used to manage a dynamically allocated array. The shared_ptr template argument in this case must be T[N] or T[]. So you may write
shared_ptr<int[]> sp(new int[10]);
From n4659, [util.smartptr.shared.const]
template<class Y> expli...
Immediate function invocation syntax
...oduced is the result of the function and not the function itself.
So, basically, he feels it makes more clear the distinction between function values, and the values of functions. So, it's an stylistic matter, not really a substantive difference in the code itself.
updated reference, old PPT no lo...
Is there any difference between a GUID and a UUID?
...purposes, there are subtle-but-occasionally-important differences. Specifically, some Microsoft GUID docs allow GUIDs to contain any hex digit in any position, while RFC4122 requires certain values for the version and variant fields. Also, [per that same link], GUIDs should be all-upper case, wher...
Python: Using .format() on a Unicode-escaped string
...> print s
≥
>>> print "{0}".format(s)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2265' in position 0: ordinal not in range(128)
>>> print u"{0}".format(s)
≥
>>>
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javascript scroll event for iPhone/iPad?
...s trying to scroll to, and it would refuse to scroll. I had to add in some calls to myScroller.refresh() whenever I changed the contents of the #wrapper, and that solved the problem.
EDIT: Another gotcha was that iScroll eats all the "click" events. I turned on the option to have iScroll emit a "ta...
How to redirect from OnActionExecuting in Base Controller?
I have tried two ways: Response.Redirect() which does nothing, as well as calling a new method inside of the Base Controller that returns an ActionResult and have it return RedirectToAction()... neither of these work.
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Inline instantiation of a constant List
...but that would only apply to the METRICS variable itself (which should typically be Metrics instead, by .NET naming conventions). It wouldn't make the list immutable - so someone could call METRICS.Add("shouldn't be here");
You may want to use a ReadOnlyCollection<T> to wrap it. For example:
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