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JUnit test with dynamic number of tests
...file itself)
Then, build a static method that will return a Collection of arrays. Each array in the collection will contain the input arguments for your class constructor e.g. the file. Decorate this method with:
@Parameters
Here's a sample class.
@RunWith(Parameterized.class)
public class Para...
How do I handle newlines in JSON?
...n data to parse JSON data:
function normalize_str($str) {
$invalid = array(
'Š'=>'S', 'š'=>'s', 'Đ'=>'Dj', 'đ'=>'dj', 'Ž'=>'Z', 'ž'=>'z',
'Č'=>'C', 'č'=>'c', 'Ć'=>'C', 'ć'=>'c', 'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A',
...
JavaScript curry: what are the practical applications?
...rry with - return function
}
var __method = this;
var args = toArray(arguments);
return function() {
return __method.apply(this, args.concat([].slice.apply(null, arguments)));
}
}
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form serialize javascript (no framework)
...a polyfill and this code (works everywhere except IE):
new URLSearchParams(Array.from(new FormData(formElement))).toString()
Example
var form = document.querySelector('form');
var out = document.querySelector('output');
function updateResult() {
try {
out.textContent = new URLSearchParam...
select count(*) from table of mysql in php
...qli->query("SELECT COUNT(*) AS Students_count FROM Students")->fetch_array();
var_dump($result['Students_count']);
or:
$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_name);
$result = $mysqli->query("SELECT COUNT(*) FROM Students")->fetch_array();
var_dump($result[0]);
...
Python - List of unique dictionaries
... only):
import numpy as np
list_of_unique_dicts=list(np.unique(np.array(list_of_dicts)))
To get it worked with Python 3.x (and recent versions of numpy), you need to convert array of dicts to numpy array of strings, e.g.
list_of_unique_dicts=list(np.unique(np.array(list_of_dicts).asty...
What is the most efficient way to deep clone an object in JavaScript?
...fined, Infinity, RegExps, Maps, Sets, Blobs, FileLists, ImageDatas, sparse Arrays, Typed Arrays or other complex types within your object, a very simple one liner to deep clone an object is:
JSON.parse(JSON.stringify(object))
const a = {
string: 'string',
number: 123,
bool: false,
...
Quickest way to convert a base 10 number to any base in .NET?
...tring(42,
Enumerable.Range('A', 26).Select(x => (char)x).ToArray());
// convert to sexagesimal
string xx = IntToString(42,
new char[] { '0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','...
Cannot instantiate the type List [duplicate]
...ated. Only concrete types can be instantiated. You probably want to use an ArrayList, which is an implementation of the List interface.
List<Product> products = new ArrayList<Product>();
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Is there a performance difference between i++ and ++i in C?
....
The differences between ++i and i++ only matters in expressions such as array[i++] = x; versus array[++i] = x;. Some may argue and say that the postfix will be slower in such operations because the register where i resides have to be reloaded later. But then note that the compiler is free to orde...