JAVASCRIPT

event listener javascript

const element = document.querySelector(".class__name");

element.addEventListener("click", () => {
	console.log("clicked element");
});

event listener javascript

document.querySelector('div').addEventListener('click', () => {
  console.log('div clicked');
});

javascript event listener

element.addEventListener("click", function(){ 
   element.innerText = "something"; 
}); 

how to add an event listener to a function javascript

function first(){
    alert( " hi it's Toofi");
}

task3Element.addEventListener('click', first);

js add event listener

function eventHandler(event) {
  if (event.type == 'fullscreenchange') {
    /* gestire un interruttore a schermo intero */
  } else /* fullscreenerror */ {
    /* gestire un errore di commutazione a schermo intero */
  }
}

event listener

// src/EventListener/ExceptionListener.php
namespace AppEventListener;

use SymfonyComponentHttpFoundationResponse;
use SymfonyComponentHttpKernelEventExceptionEvent;
use SymfonyComponentHttpKernelExceptionHttpExceptionInterface;

class ExceptionListener
{
    public function onKernelException(ExceptionEvent $event)
    {
        // You get the exception object from the received event
        $exception = $event->getThrowable();
        $message = sprintf(
            'My Error says: %s with code: %s',
            $exception->getMessage(),
            $exception->getCode()
        );

        // Customize your response object to display the exception details
        $response = new Response();
        $response->setContent($message);

        // HttpExceptionInterface is a special type of exception that
        // holds status code and header details
        if ($exception instanceof HttpExceptionInterface) {
            $response->setStatusCode($exception->getStatusCode());
            $response->headers->replace($exception->getHeaders());
        } else {
            $response->setStatusCode(Response::HTTP_INTERNAL_SERVER_ERROR);
        }

        // sends the modified response object to the event
        $event->setResponse($response);
    }
}