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.NET data structures: ArrayList, List, HashTable, Dictionary, SortedList, SortedDictionary — Speed,
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13 Answers
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How to join two sets in one line without using “|”
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320
You can use union method for sets: set.union(other_set)
Note that it returns a new set i.e it...
The type must be a reference type in order to use it as parameter 'T' in the generic type or method
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3 Answers
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Drop all tables whose names begin with a certain string
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Filip Cornelissen
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answered Aug 7 '08 at 4:53
Curt HagenlocherCu...
What integer hash function are good that accepts an integer hash key?
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Knuth's multiplicative method:
hash(i)=i*2654435761 mod 2^32
In general, you should pick a multiplier that is in the order of your hash size (2^32 in the example) and has no common factors with it. This way the hash function covers all your hash space uniformly.
Edit:...
WPF User Control Parent
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348
Try using the following:
Window parentWindow = Window.GetWindow(userControlReference);
The ...
How can I use Async with ForEach?
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Legends
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answered Sep 7 '13 at 1:22
Stephen ClearySte...
What does a lazy val do?
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342
The difference between them is, that a val is executed when it is defined whereas a lazy val i...
Compare two objects' properties to find differences?
I have two objects of the same type, and I want to loop through the public properties on each of them and alert the user about which properties don't match.
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How to get the Power of some Integer in Swift language?
...(radix), Double(power)))
}
// ...
// Then you can do this...
let i = 2 ^^ 3
// ... or
println("2³ = \(2 ^^ 3)") // Prints 2³ = 8
I used two carets so you can still use the XOR operator.
Update for Swift 3
In Swift 3 the "magic number" precedence is replaced by precedencegroups:
precedencegro...