Method ref

lib/internal/worker/io.js:439–445

* @returns {BroadcastChannel}

()

   * @returns {BroadcastChannel}
   */
  ref() {
    if (!isBroadcastChannel(this))
      throw new ERR_INVALID_THIS('BroadcastChannel');
    if (this[kHandle])
      this[kHandle].ref();
    return this;
  }

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