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Event Listeners


Listen for events on an element. You can find a full list of available events on the Mozilla Developer Network.

let btn = document.querySelector('#click-me');

btn.addEventListener('click', function (event) {
	console.log(event); // The event details
	console.log(; // The clicked element

Certain events, like focus, don’t bubble. In order to use event delegation with events that don’t bubble, you can set an optional third argument on the EventTarget.addEventListener() method, called useCapture, to true.

// Listen for all focus events in the document
document.addEventListener('focus', function (event) {
	// Run functions whenever an element in the document comes into focus
}, true);