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Is recursion ever faster than looping?
I know that recursion is sometimes a lot cleaner than looping, and I'm not asking anything about when I should use recursion over iteration, I know there are lots of questions about that already.
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When to use Mockito.verify()?
...fact that it calls method B of an object of type C, then you should test this by making a mock of type C, and verifying that method B has been called.
This implies that the contract of class A has sufficient detail that it talks about type C (which might be an interface or a class). So yes, we're ...
Understanding slice notation
...eginning through stop-1
a[:] # a copy of the whole array
There is also the step value, which can be used with any of the above:
a[start:stop:step] # start through not past stop, by step
The key point to remember is that the :stop value represents the first value that is not in the sel...
What is self-documenting code and can it replace well documented code? [closed]
I have a colleague who insists that his code doesn't need comments, it's "self documenting."
44 Answers
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What are the differences between Rust's `String` and `str`?
...ng and str ? When does one use String instead of str and vice versa? Is one of them getting deprecated?
9 Answers
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Equals(=) vs. LIKE
...ifferent operators. Most answers here focus on the wildcard support, which is not the only difference between these operators!
= is a comparison operator that operates on numbers and strings. When comparing strings, the comparison operator compares whole strings.
LIKE is a string operator that com...
Does using “new” on a struct allocate it on the heap or stack?
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Okay, let's see if I can make this any clearer.
Firstly, Ash is right: the question is not about where value type variables are allocated. That's a different question - and one to which the answer isn't just "on the stack". It's more complicated than that ...
C pointers : pointing to an array of fixed size
This question goes out to the C gurus out there:
9 Answers
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Why is creating a Thread said to be expensive?
The Java tutorials say that creating a Thread is expensive. But why exactly is it expensive? What exactly is happening when a Java Thread is created that makes its creation expensive? I'm taking the statement as true, but I'm just interested in mechanics of Thread creation in JVM.
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How do I know if a generator is empty from the start?
Is there a simple way of testing if the generator has no items, like peek , hasNext , isEmpty , something along those lines?
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