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How to select only the first rows for each unique value of a column
...e 2nd technique or Ben Thul's technique. I answered what you asked specifically, with pointers on how to solve more generally.
– gbn
Jan 12 '11 at 4:53
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In Python, how do I indicate I'm overriding a method?
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Based on this and fwc:s answer I created a pip installable package https://github.com/mkorpela/overrides
From time to time I end up here looking at this question.
Mainly this happens after (again) seeing the same bug in our code base: Someone has forgotten some "interface" i...
How to forward declare a template class in namespace std?
...rs. Of course, I know that there are more template params for std::list (allocator I think). But, that is beside the point. Do I have to know the full template declaration of a template class to be able to forward declare it?
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How do you dynamically add elements to a ListView on Android?
Can anyone explain or suggest a tutorial to dynamically create a ListView in android?
7 Answers
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Rails nested form with has_many :through, how to edit attributes of join model?
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Visual clarity really does go a long way, T.J. Schuck.
– ahnbizcad
Jul 17 '14 at 23:44
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Can I call memcpy() and memmove() with “number of bytes” set to zero?
... the length of the array for a
function, n can have the value zero on a call to that function. Unless explicitly stated
otherwise in the description of a particular function in this subclause, pointer arguments
on such a call shall still have valid values, as described in 7.1.4. On such a call...
Initializing a member array in constructor initializer
...hing. I'm not exactly sure about the following case, but some compilers do allow it.
struct A {
char foo[6];
A():foo("hello") { } /* valid? */
};
See this GCC PR for further details.
Do C++0x initializer lists solve the problem?
Yes, they do. However your syntax is invalid, I think. Y...
How to iterate over the keys and values in an object in CoffeeScript?
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Actually, all objects in JS are associative arrays (sans consistent key ordering). So the code jcmoney gave should work, though there's no reason to use [] instead of {} in that case.
– Trevor Burnham
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Tab space instead of multiple non-breaking spaces (“nbsp”)?
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@Eoin - indeed. I.e. what you really want in those cases are tab stops. But that wasn't what the OP was asking about. The OP was asking for a replacement for multiple sequential non-breaking spaces, which wouldn't line the rows up either. CSS has a tab-size...
How to parse XML in Bash?
Ideally, what I would like to be able to do is:
15 Answers
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