EventTarget()

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since setembro de 2020.

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O construtor EventTarget() cria uma nova instncia do objeto EventTarget.

Sintaxe

var myEventTarget = new EventTarget();

Parmetros

Nenhum.

Retorno de valor

Uma instncia do objeto EventTarget.

Exemplos

class MyEventTarget extends EventTarget {
  constructor(mySecret) {
    super();
    this._secret = mySecret;
  }

  get secret() {
    return this._secret;
  }
}

let myEventTarget = new MyEventTarget(5);
let value = myEventTarget.secret; // == 5
myEventTarget.addEventListener("foo", function (e) {
  this._secret = e.detail;
});

let event = new CustomEvent("foo", { detail: 7 });
myEventTarget.dispatchEvent(event);
let newValue = myEventTarget.secret; // == 7