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Best way to convert IList or IEnumerable to Array
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Which version of .NET are you using? If it's .NET 3.5, I'd just call ToArray() and be done with it.
If you only have a non-generic IEnumerable, do something like this:
IEnumerable query = ...;
MyEntityType[] array = query.Cast<MyEntityType>().ToArray();
If you don'...
Surrogate vs. natural/business keys [closed]
...hen you are likely in violation of Boyce-Codd Normal Form. BCNF is beyond 3NF, so not many people worry about it. There are situations, however, where being in BCNF is very helpful.
– Alan
Sep 17 '08 at 17:19
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Removing duplicates in lists
...ample should cover whatever you are trying to do:
>>> t = [1, 2, 3, 1, 2, 5, 6, 7, 8]
>>> t
[1, 2, 3, 1, 2, 5, 6, 7, 8]
>>> list(set(t))
[1, 2, 3, 5, 6, 7, 8]
>>> s = [1, 2, 3]
>>> list(set(t) - set(s))
[8, 5, 6, 7]
As you can see from the example resu...
Detect If Browser Tab Has Focus
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131
Yes, window.onfocus and window.onblur should work for your scenario:
http://www.thefutureofthe...
Default initialization of std::array?
...es will have indeterminate value, e.g.:
int plain_int;
int c_style_array[13];
std::array<int, 13> cxx_style_array;
Both the c-style array and std::array are filled with integers of indeterminate value, just as plain_int has indeterminate value.
Is there a syntax that will work on all ar...
Remove duplicate lines without sorting [duplicate]
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jameshfisher
24.3k2020 gold badges8484 silver badges137137 bronze badges
answered Jul 17 '12 at 23:17
Michael Hoffman...
How do I clone a generic list in C#?
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398
You can use an extension method.
static class Extensions
{
public static IList<T> C...
Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?
.... So if you like to see what the functions return for y := 1, y := 2, y := 3 you
have to write f(1,1) , f(1,2) , f(1,3).
In Java 8, constructive functions should be handled (most of the time) by using method references because there's not much advantage of using a constructive lambda function. The...
Group by month and year in MySQL
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Mark Garcia
16k33 gold badges4848 silver badges9191 bronze badges
answered Jul 29 '10 at 21:03
Mitch DempseyMitch De...