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A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
...as the unary operator + has a set of built-in overloads, specifically this one:
13.6 Built-in operators [over.built]
8 For every type T there exist candidate operator functions of the form
T* operator+(T*);
And with this, it's quite clear what happens: When operator + is applied to the clo...
Which HTML5 tag should I use to mark up an author’s name?
...
Since the pubdate attribute is gone from both the WHATWG and W3C specs, as Bruce Lawson writes here, I suggest you to remove it from your answer.
– Paul Kozlovitch
Apr 16 '15 at 11:36
...
Android emulator freezing OS X v10.9 (Mavericks) with HAXM
...
Note: I have installed the x86 Atom System Image (mentioned here: stackoverflow.com/questions/21059919/…).
– Snowcrash
Jan 28 '14 at 13:47
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Calling setCompoundDrawables() doesn't display the Compound Drawable
... I was using setCompoundDrawableRelativeWithIntrinsicBounds <- this one was added on API 17. Be careful of the intellisense.
– Neon Warge
Dec 21 '16 at 14:42
...
Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...l raise an error
if not isinstance(s, str) or not s.isdigit():
return None
elif len(s) > 10: #too many digits for int conversion
return None
else:
return int(s)
Better (EAFP: Easier to ask for forgiveness than permission):
try:
return int(s)
except (TypeError, ValueError, Ov...
How do I manage MongoDB connections in a Node.js web application?
... ObjectID(req.params.id);
const user = await db.collection('user').findOne({ _id: id }, {
email: 1,
firstName: 1,
lastName: 1
});
if (user) {
user.id = req.params.id;
res.send(user);
} else {
res.sendStatus(404);
}
} catch (err) {
next(e...
How do you calculate the average of a set of circular data? [closed]
...
@PierreBdR: If I take two steps in direction 0deg and one in direction 90deg I will have moved in the direction 26.56 deg relative to where I started. In this sense 26.56 makes much more sense as the average direction of {0,0,90} deg than 30 deg. The algebraic average is just on...
How to retrieve a user environment variable in CMake (Windows)
... aware that this may only work the first time. If CMake re-configures with one of the consecutive builds (you just call e.g. make, one CMakeLists.txt was changed and CMake runs through the generation process again), the user defined environment variable may not be there anymore (in comparison to sys...
How to reverse a singly linked list using only two pointers?
...ere is no leak, What is the need of declaring next every time, as aks mentioned, "it would be correct if you create the 'next' pointer before the while loop and just make the assignment 'next = root->next' inside the while loop.", Isn't it?
– GeekyJ
Jun 20 '...
Equivalent of typedef in C#
... equivalent in C#, or someway to get some sort of similar behaviour? I've done some googling, but everywhere I look seems to be negative. Currently I have a situation similar to the following:
...