Method postMessage

lib/internal/worker/io.js:421–430

* * @param {any} message * @returns {void}

(message)

   * @returns {void}
   */
  postMessage(message) {
    if (!isBroadcastChannel(this))
      throw new ERR_INVALID_THIS('BroadcastChannel');
    if (arguments.length === 0)
      throw new ERR_MISSING_ARGS('message');
    if (this[kHandle] === undefined)
      throw new DOMException('BroadcastChannel is closed.', 'InvalidStateError');
    if (this[kHandle].postMessage(message) === undefined)
      throw new DOMException('Message could not be posted.');
  }

  // The ref() method is Node.js specific and not part of the standard
  // BroadcastChannel API definition. Typically we shouldn't extend Web