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How to return a string value from a Bash function
... your code. "clearly a better way"? Um, no. Command substitution is far more explicit and modular.
– Wildcard
Jan 6 '16 at 3:24
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In PHP, what is a closure and why does it use the “use” identifier?
... The use keyword is also used for aliasing namespaces. It's amazing that, more than 3 years after the release of PHP 5.3.0, the syntax function ... use is still officially undocumented, which makes closures an undocumented feature. The doc even confuses anonymous functions and closures. The only (b...
What are the differences between type() and isinstance()?
...s do however offer extra goodies: isinstance (and issubclass) can now mean more than just "[an instance of] a derived class" (in particular, any class can be "registered" with an ABC so that it will show as a subclass, and its instances as instances of the ABC); and ABCs can also offer extra conveni...
When is a C++ destructor called?
...mart pointers will destroy the old object, or will destroy it if it has no more references. Ordinary pointers have no such smarts. They just hold an address and allow you to perform operations on the objects they point to by specifically doing so.
2) Following up on question 1, what defines when...
What is the most efficient way to concatenate N arrays?
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If you're concatenating more than two arrays, concat() is the way to go for convenience and likely performance.
var a = [1, 2], b = ["x", "y"], c = [true, false];
var d = a.concat(b, c);
console.log(d); // [1, 2, "x", "y", true, false];
For conca...
How do I use DateTime.TryParse with a Nullable?
...e.TryParse("some date text", out d2);
if (success) d=d2;
(There might be more elegant solutions, but why don't you simply do something as above?)
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CSS: Setting width/height as Percentage minus pixels
I'm trying to create some re-usable CSS classes for more consistency and less clutter on my site, and I'm stuck on trying to standardize one thing I use frequently.
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Type Checking: typeof, GetType, or is?
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CSS Selector “(A or B) and C”?
... just that:
:matches(.a .b) .c {
/* stuff goes here */
}
You can find more info on it here and here. Currently, most browsers support its initial version :any(), which works the same way, but will be replaced by :matches(). We just have to wait a little more before using this everywhere (I sure...
Difference between object and class in Scala
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I think ziggystar's answer is more precise, the class is an anonymous class, unless a corresponding class named Commerce is explicitly defined (then Commerce object will be a companion object to the Commerce class)
– Hendy Irawan
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