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What does the unary plus operator do?
What does the unary plus operator do? There are several definitions that I have found ( here and here ) but I still have no idea what it would be used for. It seems like it doesn't do anything but there has be a reason for it, right?
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What does middleware and app.use actually mean in Expressjs?
...atement for middleware but I haven't found a clear, concise explanation of what middleware actually is and what the app.use statement is doing. Even the express docs themselves are a bit vague on this. Can you explain these concepts for me please?
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...ither. Let's get rid of it! :-) Jokes aside, RAII is fine for a lot cases. What RAII does makes more cumbersome is cases when you want to execute some code (not resource related) even if the code above returned early. For that either you use gotos or separate it into two methods.
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What is Eclipse's Ctrl+O (Show Outline) shortcut equivalent in IntelliJ IDEA?
...familiar with the behaviour you're after - but I believe Ctrl + F12 may do what you want: it is the shortcut for the File structure Popup in the default mapping.
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What are the differences between a pointer variable and a reference variable in C++?
...safe to think of a reference as another name for the same variable. Note: What a pointer points to can be on the stack or heap. Ditto a reference. My claim in this statement is not that a pointer must point to the stack. A pointer is just a variable that holds a memory address. This variable is ...
How do I find out what version of WordPress is running?
I have just taken over someone's hosted WordPress site. How do I find out what version he is running?
16 Answers
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What does “coalgebra” mean in the context of programming?
...res which is pretty much incomprehensible to me. Can anyone please explain what coalgebras mean in the context of programming, what is their significance, and how they relate to objects and comonads?
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Does python have an equivalent to Java Class.forName()?
...'t try to program in Java style when you're in python.
If you can explain what is it that you're trying to do, maybe we can help you find a more pythonic way of doing it.
Here's a function that does what you want:
def get_class( kls ):
parts = kls.split('.')
module = ".".join(parts[:-1])
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What does ':' (colon) do in JavaScript?
...le browsing through the jQuery library I see : (colon) being used a lot. What is this used for in JavaScript?
11 Answers...