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What is x after “x = x++”?
What happens (behind the curtains) when this is executed?
17 Answers
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What is the point of interfaces in PHP?
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That's not what interfaces are about at all. It's not a compromise over multiple inheritance, it's about creating a conceptual and abstract contract for objects to implement, and for other objects/methods to consume. interfaces are a to...
What is the difference between a 'closure' and a 'lambda'?
...lambda (x) (+ x 2)) 7 )
OK, now it's time to solve the other mystery: what is a closure.
In order to do that, let's talk about symbols (variables) in lambda expressions.
As I said, what the lambda abstraction does is binding a symbol in its subexpression, so that it becomes a substitutible par...
What does the “at” (@) symbol do in Python?
... looking at some Python code which used the @ symbol, but I have no idea what it does. I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included.
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What is a thread exit code?
What exactly is a thread exit code in the Output window while debugging? What information it gives me? Is it somehow useful or just an internal stuff which should not bother me?
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What is object serialization?
What is meant by "object serialization"? Can you please explain it with some examples?
14 Answers
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Should commit messages be written in present or past tense? [closed]
...y don't yet have the changes applied, and there is the implicit question, "what will applying this changeset/patch do?" It will "Fix the XXX bug in YYY"!
For other verbs writing them as a command seems more natural, and works better if you have a specific goal up-front—you can literally write th...
What is the difference between integration testing and functional testing? [closed]
...roject management usually writes these up and QA formalizes the process of what a user should see and experience, and what the end result of those processes should be. Depending on the product this can be automated or not.
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What is NoSQL, how does it work, and what benefits does it provide? [closed]
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What exactly is it?
On one hand, a specific system, but it has also become a generic word for a variety of new data storage backends that do not follow the relational DB model.
How does it work?
Each of the systems labelled...
What's the point of 'const' in the Haskell Prelude?
...he monadic bind operator as
x >> y = x >>= const y
It's somewhat neater than using a lambda
x >> y = x >>= \_ -> y
and you can even use it point-free
(>>) = (. const) . (>>=)
although I don't particularly recommend that in this case.
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