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How does the Amazon Recommendation feature work?
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105
It is both an art and a science. Typical fields of study revolve around market basket analysis...
Catch multiple exceptions at once?
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answered Sep 25 '08 at 21:01
Joseph DaigleJoseph Daigle
43.1k1010 gold badges4646 silver badges6868 bronze badges
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Good examples of Not a Functor/Functor/Applicative/Monad?
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101
A type constructor which is not a Functor:
newtype T a = T (a -> Int)
You can make a cont...
How can I pair socks from a pile efficiently?
...sock had an integer called "PairID" one could easily distribute them into 10 buckets according to PairID % 10 (the last digit).
The best real-world partitioning I can think of is creating a rectangle of piles: one dimension is color, the other is the pattern. Why a rectangle? Because we need O(1) r...
What is the difference between String and string in C#?
...fer specifically to the class.
e.g.
string greet = String.Format("Hello {0}!", place);
This is the style that Microsoft tends to use in their examples.
It appears that the guidance in this area may have changed, as StyleCop now enforces the use of the C# specific aliases.
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Difference between
...t<? super T> dest, List<? extends T> src) {
for (int i = 0; i < src.size(); i++)
dest.set(i, src.get(i));
}
}
Also see
How can I add to List<? extends Number> data structures?
share...
What is the “right” JSON date format?
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+50
JSON itself does not specify how dates should be represented, but JavaScript does.
You should use the format emitted by Date's toJSON...
Should operator
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edited Nov 29 '19 at 22:30
answered Oct 25 '08 at 21:53
Ma...
What's the best online payment processing solution? [closed]
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Sep 19 '08 at 9:37
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What are the differences between type() and isinstance()?
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+100
To summarize the contents of other (already good!) answers, isinstance caters for inheritance (an instance of a derived class is an i...