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Update value of a nested dictionary of varying depth
... changes are minor: there is no reason for the if/else construct when .get does the same job faster and cleaner, and isinstance is best applied to abstract base classes (not concrete ones) for generality.
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What is a C++ delegate?
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Option 5: std::function
(or boost::function if your standard library doesn't support it). It is slower, but it is the most flexible.
#include <functional>
std::function<int(double)> f = [can be set to about anything in this answer]
// Usually more useful as a parameter to another ...
If I have ACCESS_FINE_LOCATION already, can I omit ACCESS_COARSE_LOCATION?
...com/training/location/retrieve-current.html#setup
For example, if your app does something like location-based recommendations, last-known location is good enough.
This has a dependency on Google Play Services
However, if you need something like live/ real-time location like Pokemon Go, use ACCESS_F...
Why should I prefer to use member initialization lists?
...les. You wouldn't want to do that unnecessarily.
Furthermore, if a class doesn't have a default constructor, or you have a const member variable, you must use an initializer list:
class A
{
public:
A(int x_) { x = x_; }
int x;
};
class B
{
public:
B() : a(3), y(2) // 'a' and 'y' MUS...
Installing multiple instances of the same windows service on a server
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This does indeed allow a service to be installed multiple times. However, all the information provided by the service installer. F.e. description, logon type etc. is ignored
– Noel Widmer
Aug...
How to debug Apache mod_rewrite
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PrivateTab addon for FF does the thing. Each tab works individually.
– Javid
Feb 11 '14 at 14:37
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recursion versus iteration
...ies with a sledgehammer: it is not a good idea, even when the sledgehammer does a really good job at it+.
+ I borrowed the sledgehammer analogy from Dijkstra's "Discipline of Programming".
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HTML5 best practices; section/header/aside/article elements
... It is a riddle to me how this answer got so many votes: it doesn’t talk about <article> elements, it doesn’t contrast the mentioned elements, neither does it group them. The answer gives no “best practices”, nor does it answer any of the explicit questions of the OP!
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Local file access with JavaScript
...s created with the APIs
A virtual file system (a directory structure which does not necessarily exist on disk in the same form that it does when accessed from within the browser) is used represent the files created with the APIs
Here are simple examples of how the APIs are used, directly and indir...
How to hide close button in WPF window?
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WPF doesn't have a built-in property to hide the title bar's Close button, but you can do it with a few lines of P/Invoke.
First, add these declarations to your Window class:
private const int GWL_STYLE = -16;
private const int...