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Tuples( or arrays ) as Dictionary keys in C#
...ta = new Dictionary<myKey, string>()
{
{new myKey(1, 2, 3), "data123"},
{new myKey(4, 5, 6), "data456"},
{new myKey(7, 8, 9), "data789"}
};
You also can use it in contracts
as a key for join or groupings in linq
going this way you never ever mistype order of Item1, Item2, Item3
...
Test if something is not undefined in JavaScript
...defined", instead of a useful message about an "un-caught exception @ line 123 of file xyz.js". Eventually a second developer will probably comment out the console.log() statement, making it more difficult for a 3rd developer to come in and fix a bug happening deep within doSomething().
...
Dynamic validation and name in a form with AngularJS
...hBen Lesh
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11
...
Hibernate Criteria returns children multiple times with FetchType.EAGER
...
123
Even if you do understand the following explanation, you might well complain about this behaviour on the Hibernate forum, because it is fl...
What is meant by the term “hook” in programming?
...ch tricks as protecting your BASIC programs by setting the first line as:
123 REM XIN#6
then using POKE to insert the CTRL-D character in where the X was. Then, anyone trying to list your source would send the re-initialize sequence through the output routines where the disk sub-system would dete...
What requirement was the tuple designed to solve?
...e/use a tuple in a very efficient and simple way:
var person = (Id:"123", Name:"john"); //create tuble with two items
Console.WriteLine($"{person.Id} name:{person.Name}") //access its fields
Returning more than one value from a method:
public (double sum, double average) ComputeSu...
Memoization in Haskell?
... f does what you mean for small values of f by calling, for example: fix f 123 = 144
We could memoize this by defining:
f_list :: [Int]
f_list = map (f faster_f) [0..]
faster_f :: Int -> Int
faster_f n = f_list !! n
That performs passably well, and replaces what was going to take O(n^3) time...
What are carriage return, linefeed, and form feed?
...
printf("123\f456\f789"); shows /><bold>123456789</bold> on console.
– Mayur
Feb 27 '19 at 6:02
...
Android: Difference between Parcelable and Serializable?
...ited Nov 27 '15 at 19:06
hichris123
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answered Mar 12 '14 at 11:44
...
Error: Jump to case label
...in the { }
dostuff(i);
break;
}
case 2:
dostuff(123); // Now you cannot use i accidentally
}
Edit
To further elaborate, switch statements are just a particularly fancy kind of a goto. Here's an analoguous piece of code exhibiting the same issue but using a goto instead ...