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How is __eq__ handled in Python and in what order?
...(b).
If type(b) has overridden __eq__, then the result is b.__eq__(a).
If none of the above are the case, Python repeats the process looking for __cmp__. If it exists, the objects are equal iff it returns zero.
As a final fallback, Python calls object.__eq__(a, b), which is True iff a and b are the ...
How can I use Timer (formerly NSTimer) in Swift?
...0+)
let timer = Timer(timeInterval: 0.4, repeats: true) { _ in print("Done!") }
// Swift >=3 selector syntax
let timer = Timer.scheduledTimer(timeInterval: 0.4, target: self, selector: #selector(self.update), userInfo: nil, repeats: true)
// Swift 2.2 selector syntax
let timer...
Interfaces vs. abstract classes [duplicate]
...wever, they are typically more flexible as a type can only be derived from one class, but can implement any number of interfaces.
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What is the 'pythonic' equivalent to the 'fold' function from functional programming?
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Lambda in Python can't contain more than one expression. You can't make it complex even if you try hard. So Pythonistas who don't like them are probably just not used to and hence don't like functional programming style.
– golem
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Event Signature in .NET — Using a Strong Typed 'Sender'? [closed]
....NET guidelines, and, therefore, is probably a poor idea for this reason alone. However, I would like to consider this from two possible perspectives:
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Why does Iterable not provide stream() and parallelStream() methods?
...ogic was supposedly applied to Iterable (I can't have stream() because someone might want it to return IntStream) whereas an equal amount of thought wasn't given to adding the exact same method to Collection (I might want my Collection<Integer>'s stream() to return IntStream also.) Whether it ...
How to change credentials for SVN repository in Eclipse?
...uments and Settings\%USER%\Application Data\Subversion\auth\svn.simple" in one of the files with a long HEX name. Opening them in notepad, locating the one with my colleagues credentials and deleting it solved the problem. Thanks for your help!
– Kirill Strizhak
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How to convert C# nullable int to int
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The other answers so far are all correct; I just wanted to add one more that's slightly cleaner:
v2 = v1 ?? default(int);
Any Nullable<T> is implicitly convertible to its T, PROVIDED that the entire expression being evaluated can never result in a null assignment to a ValueType....
notifyDataSetChanged example
...n this topic, though this post it old, I thought it will be helpful to someone who wants to know how to implement BaseAdapter.notifyDataSetChanged() step by step and in a correct way.
Please follow How to correctly implement BaseAdapter.notifyDataSetChanged() in Android or the newer blog BaseAdapte...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...; they are just a to-do list. layoutSubviews is where the to-do list gets done. And it does it by setting frames.
I can't help regarding this as a bug. If I apply this transform to a view:
v.transform = CGAffineTransformMakeScale(0.5,0.5);
I expect to see the view appear with its center in the s...