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How does one make an optional closure in swift?
...may be slightly off, but remember the ? is really just sugar for Optional<T>, so you could also write ` func then(onFulfilled: ()->(), onReject: Optional<()->()>) { ` then you would not need the extra (), though IMO the ()? is prettier. Also you can make it even prettier with...
How to set std::tuple element by index?
...eturns a reference to the value. So you set the value like this:
std::get<0>(myTuple) = newValue;
This of course assumes that myTuple is non-const. You can even move items out of a tuple via std::move, by invoking it on the tuple:
auto movedTo = std::get<0>(std::move(myTuple));
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C++ Object Instantiation
... RAII
Also look into smart pointer classes which are used to wrap the resulting pointers on the rare cases when you do have to allocate something with new outside a dedicated RAII object. You instead pass the pointer to a smart pointer, which then tracks its lifetime, for example by reference count...
What is the right way to POST multipart/form-data using curl?
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what about multiple attachments?
– hellboy
Nov 3 '15 at 12:06
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Android Min SDK Version vs. Target SDK Version
...voluted code' makes the runtime, but I do think that splitting and using multiple APKs is worse in terms of code complexity. Now you've got to remember to comment in/out or merge through more branches in your source control before you can make each export. When at an Android conference last October,...
How exactly does the python any() function work?
...that to any. But by using a generator expression, you can have Python's builtin functions like any and all break out early, as soon as a True or False value is seen.
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Boolean operators && and ||
...ning they can return a vector, like this:
((-2:2) >= 0) & ((-2:2) <= 0)
# [1] FALSE FALSE TRUE FALSE FALSE
The longer form evaluates left to right examining only the first element of each vector, so the above gives
((-2:2) >= 0) && ((-2:2) <= 0)
# [1] FALSE
As the hel...
One SVN repository or many?
If you have multiple, unrelated projects, is it a good idea to put them in the same repository?
13 Answers
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Python strptime() and timezones?
...) method, an aware datetime object will be produced. The tzinfo of the result will be set to a timezone instance.
Note that this doesn't work with %Z, so the case is important. See the following example:
In [1]: from datetime import datetime
In [2]: start_time = datetime.strptime('2018-04-18-17-...
How to remove the underline for anchors(links)?
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The simplest option is this:
<a style="text-decoration: none">No underline</a>
Of course, mixing CSS with HTML (i.e. inline CSS) is not a good idea, especially when you are using a tags all over the place.
That's why it's a good idea to add ...