$("#myButton").on("click", function() { alert("Button clicked!"); });
var myForm = document.querySelector("#myForm"); myForm.addEventListener("submit", function(event) { event.preventDefault(); alert("Form submitted!"); });
use Symfony\Component\EventDispatcher\EventDispatcher; $dispatcher = new EventDispatcher(); $dispatcher->addListener("my.select.change", function($event) { $selectedOption = $event->getSelectedOption(); echo "Selected option: ".$selectedOption; }); // Trigger event when select input changes $dispatcher->dispatch("my.select.change", new MySelectChangeEvent($selectedOption));Package library: Symfony\EventDispatcher