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Best way to do multiple constructors in PHP
...
<?php
class Student
{
public function __construct() {
// allocate your stuff
}
public static function withID( $id ) {
$instance = new self();
$instance->loadByID( $id );
return $instance;
}
public static function withRow( array $row ) {
...
How do I get the localhost name in PowerShell?
...~~~~~~~~~~ + CategoryInfo : ObjectNotFound: (env:COMPUTERNAME:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
– mathisfun
Mar 14 '18 at 12:21
...
__proto__ VS. prototype in JavaScript
...x = x;
this.y = y;
}
var myPoint = new Point();
// the following are all true
myPoint.__proto__ == Point.prototype
myPoint.__proto__.__proto__ == Object.prototype
myPoint instanceof Point;
myPoint instanceof Object;
Here Point is a constructor function, it builds an object (data structure) p...
Fastest way to list all primes below N
...4.0 |
| sundaram3 | 416.0 |
+---------------------+-------+
Of all the methods tested, allowing numpy, for n=1000000,
primesfrom2to was the fastest tested.
+---------------------+-------+
| Method | ms |
+---------------------+-------+
| primesfrom2to | 15.9 |
| p...
Compare object instances for equality by their attributes
...s:
>>> x == y
True
Note that implementing __eq__ will automatically make instances of your class unhashable, which means they can't be stored in sets and dicts. If you're not modelling an immutable type (i.e. if the attributes foo and bar may change value within the lifetime of your obje...
Why doesn't Java support unsigned ints?
...er performance rather than assuming it to be true. It is possible that the extra jiggery-pokery required to manipulate shorts rather than ints (which is usually the type that the processor 'likes to use') could actually be detrimental to performance in a particular application. Not always, but you s...
Create a submodule repository from a folder and keep its git commit history
...it submodules using npm ;)
In the following answer, you will know how to extract a folder from a repository and make a git repository from it and then including it as a submodule instead of a folder.
Inspired from Gerg Bayer's article Moving Files from one Git Repository to Another, Preserving Hi...
Secure Web Services: REST over HTTPS vs SOAP + WS-Security. Which is better? [closed]
...
An extra point - Transmission security requires authentication of transmission initiator. For example, no good having SSH if everyone knows the password. Multi-layer security is vital in distributed applications. Think Identity,...
Why does Maven have such a bad rep? [closed]
...can be. And also, advocaters tend to be the type of people that celebrates extra on their birthday when their age is a prime-numer . Feel free to vote me down :-)
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SQL, Postgres OIDs, What are they and why are they useful?
...efault. Performing a SELECT * will now include this column. Note that this extra “surprise” column may break naïvely written SQL code.
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