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How do I test which class an object is in Objective-C?
...s an instance of
// given class or an instance of any class that inherits from that class.
or
[yourObject isMemberOfClass:[a class]]
// Returns a Boolean value that indicates whether the receiver is an instance of a
// given class.
To get object's class name you can use NSStringFromClass func...
How do ports work with IPv6?
Conventional IPv4 dotted quad notation separates the address from the port with a colon, as in this example of a webserver on the loopback interface:
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How does Task become an int?
...g. return async result; (in the same way that await result "unwraps" the T from the Tast<T>).
– dav_i
Nov 18 '13 at 14:31
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Responsive font size in CSS
... initial containing block is changed, they are scaled accordingly.
Again, from the same W3C document each individual unit can be defined as below:
vw unit - Equal to 1% of the width of the initial containing block.
vh unit - Equal to 1% of the height of the initial containing block.
vmin unit - Eq...
Cleaner way to update nested structures
.... It turns out that the structure of the zipper is automatically derivable from the original data structure, in a manner that resembles symbolic differentiation of an algebraic expression.
But how does this help you with your Scala case classes? Well, Lukas Rytz recently prototyped an extension to ...
HorizontalScrollView within ScrollView Touch Handling
...of current X coordinate and lastX, if it is larger than 0, touch is moving from left to right, otherwise right to left. And then you save the current X as lastX for next calculation.
– neevek
Aug 23 '12 at 1:25
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C++11 emplace_back on vector?
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For anyone from the future, this behavior will be changed in C++20.
In other words, even though implementation internally will still call T(arg0, arg1, ...) it will be considered as regular T{arg0, arg1, ...} that you would expect.
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Find a file in python
...txt'", shell=True).splitlines()]
While it's POSIX-only, I got 0.25 sec.
From this, I believe it's entirely possible to optimise whole searching a lot in a platform-independent way, but this is where I stopped the research.
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Why does Git treat this text file as a binary file?
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We are both right, but from different perspectives. We both say "Git inspects the contents to determine its type." We both say that to make git know it should be treated as UTF16 the user needs to tell git via .gitattributes etc.
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How to get an array of specific “key” in multidimensional array without looping
Let's assume I have the following multidimensional array (retrieved from MySQL or a service):
4 Answers
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