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What does Provider in JAX-RS mean?
...f them as plugins that (potentially) alter the behavior of the runtime, in order to accomplish a set of (program defined) goals.
Providers are not the same as resources classes, they exist, conceptually, at a level in-between resources classes and the JAX-RS implementation. If it helps, you can thi...
Difference between FOR and AFTER triggers?
...t, and fires before and instead of the insert and can be used on views, in order to insert the appropriate values into the underlying tables.
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Node.js throws “btoa is not defined” error
...rs (i.e. if you plan to exchange base64 between Node.js and a browser). In order to make it work you have to mark the input text as 'binary'.
Buffer.from('Hélló wórld!!', 'binary').toString('base64')
This gives you SOlsbPMgd/NybGQhIQ==. If you make atob('SOlsbPMgd/NybGQhIQ==') in a browser it...
What is an abstract class in PHP?
...declared abstract.
Note: Traits support the use of abstract methods in order to impose requirements upon the exhibiting class.
Example below :
class Non_Abstract_Class
{
abstract protected function getValue();
public function printOut() {
echo "Hello how are you?";
}
}
$...
Is it possible to serialize and deserialize a class in C++?
...s to me that boost::serialization requires the caller to keep track of the order in which objects are written and read. Is that correct? So if there is a change in the order in which two fields are written between versions of a program then we have an incompatibility. Is this right?
...
EF Migrations: Rollback last applied migration?
...value. Likewise, if you have applied migrations A, B, C, D, and E (in that order), then the ordinal 1 should refer to A, ordinal 2 should refer to B, and so on. So to rollback to B you could use either:
Update-Database -TargetMigration:"B"
or
Update-Database -TargetMigration:2
Edit October 201...
Rotating a two-dimensional array in Python
...breakdown:
[::-1] - makes a shallow copy of the original list in reverse order. Could also use reversed() which would produce a reverse iterator over the list rather than actually copying the list (more memory efficient).
* - makes each sublist in the original list a separate argument to zip() (i....
How to merge two arrays in JavaScript and de-duplicate items
...var array3 = array1.concat(array2).unique();
This will also preserve the order of the arrays (i.e, no sorting needed).
Since many people are annoyed about prototype augmentation of Array.prototype and for in loops, here is a less invasive way to use it:
function arrayUnique(array) {
var a = ar...
How to implement classic sorting algorithms in modern C++?
...tialization {} instead of the good old parenthesized initialization () (in order to side-step all most-vexing-parse issues in generic code).
Scott Meyers's "Prefer alias declarations to typedefs". For templates this is a must anyway, and using it everywhere instead of typedef saves time and adds con...
Understanding how recursive functions work
...ot been able to grok yet. Filtering out all of the (extremely clever) "In order to understand recursion, you must first understand recursion." replies from various online threads I still am not quite getting it.
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