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Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?

...eturn self; } return nil; } Edit Swift 4: override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? { if self.point(inside: point, with: event) { return super.hitTest(point, with: event) } guard isUserInteractionEnabled, !isHidden, alpha > 0 else {...
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How to correctly implement custom iterators and const_iterators?

...ustom container class for which I'd like to write the iterator and const_iterator classes. 6 Answers ...
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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?

...swered Jun 17 '16 at 15:20 James_picJames_pic 2,9321414 silver badges2323 bronze badges ...
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Install tkinter for Python

...: No module named 'tkinter' I Use(Python 3.7.5) – sqp_125 Dec 9 '19 at 18:30 Solution: sudo apt-get install python3.7-...
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Why is Go so slow (compared to Java)?

... as new libraries, frameworks and tools pop up. – if __name__ is None May 30 '13 at 23:37 1 @user...
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IOException: read failed, socket might closed - Bluetooth on Android 4.3

... hood of the BluetoothDevice class (see https://github.com/android/platform_frameworks_base/blob/android-4.3_r2/core/java/android/bluetooth/BluetoothDevice.java#L1037). Now, when I receive that exception, I instantiate a fallback BluetoothSocket, similar to the source code below. As you can see, in...
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Recursive lambda functions in C++11

...r, not by capture. const auto sum = [term,next](int a, int b) { auto sum_impl=[term,next](int a,int b,auto& sum_ref) mutable { if(a>b){ return 0; } return term(a) + sum_ref(next(a),b,sum_ref); }; return sum_impl(a,b,sum_impl); }; All problems in computer science can...
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Ant task to run an Ant target only if a file exists?

... Check Using Filename filters like DB_*/**/*.sql Here is a variation to perform an action if one or more files exist corresponding to a wildcard filter. That is, you don't know the exact name of the file. Here, we are looking for "*.sql" files in any sub-dire...
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Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?

...() contains the correct value when prepareFroSegue... is called: tableView(_:didSelectrowAtIndexPath:) isn't called until later. – Nicolas Miari Jun 7 '16 at 2:21 add a commen...
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How to paste yanked text into the Vim command line

...own use (capitalized A to Z are for appending to corresponding registers). _ (acts like /dev/null (Unix) or NUL (Windows), you can write to it but it's discarded and when you read from it, it is always empty), - (small delete register), / (search pattern register, updated when you look for text with...