Class Event

lib/internal/event_target.js:99–337

}

class Event {
  #cancelable = false;
  #bubbles = false;
  #composed = false;
  #defaultPrevented = false;
  #timestamp = now();
  #propagationStopped = false;

  /**
   * @param {string} type
   * @param {{
   *   bubbles?: boolean,
   *   cancelable?: boolean,
   *   composed?: boolean,
   * }} [options]
   */
  constructor(type, options = undefined) {
    if (arguments.length === 0)
      throw new ERR_MISSING_ARGS('type');
    if (options != null)
      validateObject(options, 'options');
    this.#bubbles = !!options?.bubbles;
    this.#cancelable = !!options?.cancelable;
    this.#composed = !!options?.composed;

    this[kType] = `${type}`;
    if (options?.[kTrustEvent]) {
      isTrustedSet.add(this);
    }

    this[kTarget] = null;
    this[kIsBeingDispatched] = false;
    this[kInPassiveListener] = false;
  }

  /**
   * @param {string} type
   * @param {boolean} [bubbles]
   * @param {boolean} [cancelable]
   */
  initEvent(type, bubbles = false, cancelable = false) {
    if (arguments.length === 0)
      throw new ERR_MISSING_ARGS('type');

    if (this[kIsBeingDispatched]) {
      return;
    }
    this[kType] = `${type}`;
    this.#bubbles = !!bubbles;
    this.#cancelable = !!cancelable;
  }

  [customInspectSymbol](depth, options) {
    if (!isEvent(this))
      throw new ERR_INVALID_THIS('Event');
    const name = this.constructor.name;
    if (depth < 0)
      return name;