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What is the difference between self-types and trait subclasses?
...ts are satisfied. A User and an implementation of User are provided.
For more practical use cases, please see the links at the start of this answer! But, hopefully now you get it.
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How do I clone a generic list in C#?
...n! By the way I prefer public static List<T> CLone<T>... It is more useful in the cases like this, because no further cast needed: List<MyType> cloned = listToClone.Clone();
– Plutoz
May 15 '15 at 7:02
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Convert a number range to another range, maintaining ratio
...- OldMin) * (NewMax - NewMin)) / (OldMax - OldMin)) + NewMin
Or a little more readable:
OldRange = (OldMax - OldMin)
NewRange = (NewMax - NewMin)
NewValue = (((OldValue - OldMin) * NewRange) / OldRange) + NewMin
Or if you want to protect for the case where the old range is 0 (OldMin = Old...
How to disable Crashlytics during development
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What is the difference between MySQL, MySQLi and PDO? [closed]
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There are (more than) three popular ways to use MySQL from PHP. This outlines some features/differences PHP: Choosing an API:
(DEPRECATED) The mysql functions are procedural and use manual escaping.
MySQLi is a replacement for the my...
SQL query to get all values a enum can have
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This answer is much more concise. Nice contribution!
– Darin Peterson
Jul 25 '13 at 21:15
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Is it better to use Enumerable.Empty() as opposed to new List() to initialize an IEnumerable
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I think Enumerable.Empty<T> is better because it is more explicit: your code clearly indicates your intentions. It might also be a bit more efficient, but that's only a secondary advantage.
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How do I get bit-by-bit data from an integer value in C?
... shift the masked value to get just the bit we want. We could write it out more fully as:
int mask = 1 << k;
int masked_n = n & mask;
int thebit = masked_n >> k;
You can read more about bit-masking here.
Here is a program:
#include <stdio.h>
#include <stdl...
How do I “Add Existing Item” an entire directory structure in Visual Studio?
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Insert new item in array on any position in PHP
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You may find this a little more intuitive. It only requires one function call to array_splice:
$original = array( 'a', 'b', 'c', 'd', 'e' );
$inserted = array( 'x' ); // not necessarily an array, see manual quote
array_splice( $original, 3, 0, $inser...