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What does “hashable” mean in Python?
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103
All the answers here have good working explanation of hashable objects in python, but I believ...
Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space
... [A-Za-z0-9_] word characters (including the underscore)
Example at regex101.com
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How do I vertically center text with CSS? [duplicate]
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You can try this basic approach:
div {
height: 100px;
line-height: 100px;
text-align: center;
border: 2px dashed #f69c55;
}
<div>
Hello World!
</div>
It only works for a single line of text though, because we set the line's height to the ...
How are 3D games so efficient? [closed]
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answered Feb 7 '10 at 17:22
John FeminellaJohn Feminella
272k3939 gold badges320320 silver badges337337 bronze badges
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Enabling HTTPS on express.js
... the native http/https server
If you want your app running on ports below 1024, you will need to use sudo command (not recommended) or use a reverse proxy (e.g. nginx, haproxy).
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Creating a UICollectionView programmatically
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answered Nov 10 '14 at 5:08
WarewolfWarewolf
12.4k44 gold badges5353 silver badges8585 bronze badges
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UICollectionView Set number of columns
...ColumnFlowLayout(
cellsPerRow: 5,
minimumInteritemSpacing: 10,
minimumLineSpacing: 10,
sectionInset: UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)
)
override func viewDidLoad() {
super.viewDidLoad()
collectionView?.collectionViewLayo...
What makes Scala's operator overloading “good”, but C++'s “bad”?
...n that way. It just has great flexibility in defining method names plus a bit of built in precedence for non-word symbols. So technically Scala doesn't have operator overloading.
Whatever you want to call it, operator overloading isn't inherently bad, even in C++. The problem is when bad progra...
How do I get an object's unqualified (short) class name?
...str_replace('\\', '/', static::class));
}
}
$a = new ClassA();
$num = 100000;
$rounds = 10;
$res = array(
"Reflection" => array(),
"Basename" => array(),
"Explode" => array(),
);
for($r = 0; $r < $rounds; $r++){
$start = microtime(true);
for($i = 0; $i < $n...
How do I change the string representation of a Python class? [duplicate]
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answered Feb 6 '11 at 10:57
Mark ByersMark Byers
683k155155 gold badges14681468 silver badges13881388 bronze badges
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