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In Python, what is the difference between “.append()” and “+= []”?
What is the difference between:
12 Answers
12
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Remove duplicate rows in MySQL
I have a table with the following fields:
25 Answers
25
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Bare asterisk in function arguments?
What does a bare asterisk in the arguments of a function do?
6 Answers
6
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What's the best way to inverse sort in scala?
What is the best way to do an inverse sort in scala? I imagine the following is somewhat slow.
9 Answers
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how does multiplication differ for NumPy Matrix vs Array classes?
...o use the function matrixmultipy(). I feel this makes the code very unreadable.
8 Answers
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Array Size (Length) in C#
How can I determine size of an array (length / number of items) in C#?
9 Answers
9
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How to amend older Git commit? [duplicate]
I have made 3 git commits, but have not been pushed.
How can I amend the older one (ddc6859af44) and (47175e84c) which is not the most recent one?
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Minimizing NExpectation for a custom distribution in Mathematica
This relates to an earlier question from back in June:
1 Answer
1
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Different ways of clearing lists
... doesn't affect other references:
>>> a = [1, 2, 3]
>>> b = a
>>> a = []
>>> print(a)
[]
>>> print(b)
[1, 2, 3]
But this one does:
>>> a = [1, 2, 3]
>>> b = a
>>> del a[:] # equivalent to del a[0:len(a)]
>>> ...
Can enums be subclassed to add new elements?
..., you can't do this in Java. Aside from anything else, d would then presumably be an instance of A (given the normal idea of "extends"), but users who only knew about A wouldn't know about it - which defeats the point of an enum being a well-known set of values.
If you could tell us more about how ...