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Remove element by id
...ts")[0].remove(); ] I think the function remove() ist not implemented by arrays. In order to remove all elements of a class or any selector returning an array, you have to iterate through all elements and call remove() on each.
– Sedat Kilinc
Dec 21 '14 at 17...
Using Java 8 to convert a list of objects into a string obtained from the toString() method
...end your list items in a StringBuilder
List<Integer> list = new ArrayList<>();
list.add(1);
list.add(2);
list.add(3);
StringBuilder b = new StringBuilder();
list.forEach(b::append);
System.out.println(b);
you can also try:
String s = list.stream().map(e -> ...
Returning JSON from PHP to JavaScript?
... in your PHP:
header('Content-type: application/json');
echo json_encode($array);
json_encode() can return a JavaScript array instead of JavaScript object, see:
Returning JSON from a PHP Script
This could be important to know in some cases as arrays and objects are not the same.
...
How to build query string with Javascript
...but it fits my needs.
function form_params( form )
{
var params = new Array()
var length = form.elements.length
for( var i = 0; i < length; i++ )
{
element = form.elements[i]
if(element.tagName == 'TEXTAREA' )
{
params[element.name] = element....
What's better at freeing memory with PHP: unset() or $var = null
...loop destroys and recreates the same symbol. If the test is redone with an array unset is faster. I have a test which later checks for existence in the unset case. In that test setting it to null is marginally faster. Test: pastebin.com/fUe57C51
– Knyri
Jul 19 ...
Getting the last argument passed to a shell script
...
Note: This answer works for all Bash arrays, unlike ${@:$#} which only works on $@. If you were to copy $@ to a new array with arr=("$@"), ${arr[@]:$#} would be undefined. This is because $@ has a 0th element that isn't included in "$@" expansions.
...
How do I read configuration settings from Symfony2 config.yml?
...class MyNiceProjectExtension extends Extension
{
public function load( array $configs, ContainerBuilder $container )
{
// The next 2 lines are pretty common to all Extension templates.
$configuration = new Configuration();
$processedConfig = $this->processConfigura...
Simple Digit Recognition OCR in OpenCV-Python
... is pressed, it resizes this box to 10x10 and saves 100 pixel values in an array (here, samples) and corresponding manually entered digit in another array(here, responses).
Then save both the arrays in separate txt files.
At the end of manual classification of digits, all the digits in the train d...
How to find Array length inside the Handlebar templates?
...mplate which is rendered using a json object. In this json I am sending an array. Like this:
4 Answers
...
Immutable class?
...change the state of the object.
For example, allowing an reference to an array or ArrayList to be obtained through an getter will allow the internal state to change by changing the array or collection:
class NotQuiteImmutableList<T> {
private final List<T> list;
public NotQuiteIm...