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Efficient evaluation of a function at every cell of a NumPy array
...ze(f) # or use a different name if you want to keep the original f
result_array = f(A) # if A is your Numpy array
It's probably better to specify an explicit output type directly when vectorizing:
f = np.vectorize(f, otypes=[np.float])
...
Find out if string ends with another string in C++
...
Use this function:
inline bool ends_with(std::string const & value, std::string const & ending)
{
if (ending.size() > value.size()) return false;
return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
}
...
Where does the .gitignore file belong?
...answered Apr 11 '18 at 12:18
XLE_22XLE_22
3,12633 gold badges1111 silver badges3737 bronze badges
...
Check if URL has certain string with PHP
...URL and the rest check if it contains the word "car".
$url = 'http://' . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
if (strpos($url,'car') !== false) {
echo 'Car exists.';
} else {
echo 'No cars.';
}
shar...
Rails: Is there a rails trick to adding commas to large numbers?
... (only a fraction of a second over one million iterations) faster than the approach presented here: number.to_s.reverse.scan(/(?:\d*\.)?\d{1,3}-?/).join(',').reverse
– user664833
Dec 31 '12 at 22:21
...
jQuery - Detect value change on hidden input field
...allback) {
Object.defineProperty(obj, property, new function() {
var _value = obj[property];
return {
set: function(value) {
_value = value;
callback(obj, property, value)
},
get: function() {
return _value;
}
}
});
}
$("#hid1").val(4)...
Gradients in Internet Explorer 9
...ad, which allows us to keep our design in our stylesheets.
<?php
$from_stop = isset($_GET['from']) ? $_GET['from'] : '000000';
$to_stop = isset($_GET['to']) ? $_GET['to'] : '000000';
header('Content-type: image/svg+xml; charset=utf-8');
echo '<?xml version="1.0"?>
';
?>
<svg xmln...
Upload artifacts to Nexus, without Maven
...ven command-line to upload files?
mvn deploy:deploy-file \
-Durl=$REPO_URL \
-DrepositoryId=$REPO_ID \
-DgroupId=org.myorg \
-DartifactId=myproj \
-Dversion=1.2.3 \
-Dpackaging=zip \
-Dfile=myproj.zip
This will automatically generate the Maven POM for the artifact.
...
How to have stored properties in Swift, the same way I had on Objective-C?
...class ObjectAssociation<T: AnyObject> {
private let policy: objc_AssociationPolicy
/// - Parameter policy: An association policy that will be used when linking objects.
public init(policy: objc_AssociationPolicy = .OBJC_ASSOCIATION_RETAIN_NONATOMIC) {
self.policy = polic...
How can I use xargs to copy files that have spaces and quotes in their names?
...answer but not working on Mac. Instead we can pipe the find into sed -e 's_\(.*\)_"\1"_g' to force quotes around the file name
– ishahak
Aug 21 '16 at 11:08
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