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Best way to give a variable a default value (simulate Perl ||, ||= )
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In PHP 7 we finally have a way to do this elegantly. It is called the Null coalescing operator. You can use it like this:
$name = $_GET['name'] ?? 'john doe';
This is equivalent to
$name = isset($_GET['name']) ? $_GET['name']:'john doe';
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PHP Session Fixation / Hijacking
...lems. I've been reading the following two articles on Chris Shiflett's website:
5 Answers
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Why C# implements methods as non-virtual by default?
...e Java, why does C# treat methods as non-virtual functions by default? Is it more likely to be a performance issue rather than other possible outcomes?
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When to use std::forward to forward arguments?
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Use it like your first example:
template <typename T> void f(T && x)
{
g(std::forward<T>(x));
}
template <typename ...Args> void f(Args && ...args)
{
g(std::forward<Args>(args)...);
}...
Should I embed images as data/base64 in CSS or HTML
... I have embedded some images (PNG & SVG) as BASE64 directly into the css. (Its automated in the build process)
7 Answers
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Inject service in app.config
...ig, so that data can be retrieved before the controller is called. I tried it like this:
10 Answers
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Java 8 Distinct by property
...ere is a function that returns a predicate that maintains state about what it's seen previously, and that returns whether the given element was seen for the first time:
public static <T> Predicate<T> distinctByKey(Function<? super T, ?> keyExtractor) {
Set<Object> seen =...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
I feel like I must just be unable to find it. Is there any reason that the C++ pow function does not implement the "power" function for anything except float s and double s?
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Is it possible to cherry-pick a commit from another git repository?
I'm working with a git repository that needs a commit from another git repository that knows nothing of the first.
11 Answe...
Capture HTML Canvas as gif/jpg/png/pdf?
Is it possible to capture or print what's displayed in an html canvas as an image or pdf?
12 Answers
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