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C++ semantics of `static const` vs `const`
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Lightness Races in Orbit
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answered Sep 14 '10 at 13:22
Ben VoigtBe...
Expanding tuples into arguments
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edited May 27 at 13:31
Nicolas Gervais
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a...
What does the caret operator (^) in Python do?
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>>> 0^1
1
To explain one of your own examples:
>>> 8^3
11
Think about it this way:
1000 # 8 (binary)
0011 # 3 (binary)
---- # APPLY XOR ('vertically')
1011 # result = 11 (binary)
share
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Concatenating two one-dimensional NumPy arrays
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388
The line should be:
numpy.concatenate([a,b])
The arrays you want to concatenate need to passe...
Generate a UUID on iOS from Swift
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635
Try this one:
let uuid = NSUUID().uuidString
print(uuid)
Swift 3/4/5
let uuid = UUID().uuid...
split string in to 2 based on last occurrence of a separator
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3 Answers
3
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How can I convert NSDictionary to NSData and vice versa?
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363
NSDictionary -> NSData:
NSData *myData = [NSKeyedArchiver archivedDataWithRootObject:myDi...
How can I plot with 2 different y-axes?
...t y axes on the same plot
(some material originally by Daniel Rajdl 2006/03/31 15:26)
Please note that there are very few situations where it is appropriate to use two different scales on the same plot. It is very easy to mislead the viewer of the graphic. Check the following two examples and comm...
How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
I have a dataframe with ~300K rows and ~40 columns.
I want to find out if any rows contain null values - and put these 'null'-rows into a separate dataframe so that I could explore them easily.
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