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How does collections.defaultdict work?
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Usually, a Python dictionary throws a KeyError if you try to get an item with a key that is not currently in the dictionary. The defaultdict in contrast will simply create any items that you try to access (provided of course th...
Get name of caller function in PHP?
Is there a PHP function to find out the name of the caller function in a given function?
12 Answers
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Composer killed while updating
I got a problem, I tried to install a new package to my Laravel 4 project.
But when I run php composer.phar update I get this:
...
How to simulate target=“_blank” in JavaScript
...cking window.open is kinda the point of pop-up blockers! If you make the call in response to a click action it has a better chance of not being blocked.
– William Denniss
Aug 18 '11 at 15:16
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How to do Base64 encoding in node.js?
...uld be .toString("binary") (atob stands for ascii(base64) to binary, after all)
– 12Me21
Jan 14 at 19:55
@12Me21 I tho...
Collapse sequences of white space into a single character and trim string
...low, because it creates a new object for every substring and sends method calls to each of them.
– Georg Schölly
Jun 23 '11 at 18:55
2
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My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
...has taught me is what is known as the "most vexing parse", which is classically demonstrated with a line such as
5 Answers
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What is a method that can be used to increment letters?
...ded to expand it a bit beyond the scope of the original question to potentially help people who are stumbling on this from Google.
I find that what I often want is something that will generate sequential, unique strings in a certain character set (such as only using letters), so I've updated this a...
What's the _ underscore representative of in Swift References?
...ng, s2: String) -> String {
return s1 + s2;
}
}
When you call foo(), it is called like bar.foo("Hello", s2: "World").
But, you can override this behavior by using _ in front of s2 where it's declared.
func foo(s1: String, _ s2: String) -> String{
return s1 + s2;
}
Then, w...
Queue.Queue vs. collections.deque
...nd collections.deque serve different purposes. Queue.Queue is intended for allowing different threads to communicate using queued messages/data, whereas collections.deque is simply intended as a datastructure. That's why Queue.Queue has methods like put_nowait(), get_nowait(), and join(), whereas co...