Method dispose

ViewabilityHelper.js:73–75

* Cleanup, e.g. on unmount. Clears any pending timers.

()

   * Cleanup, e.g. on unmount. Clears any pending timers.
   */
  dispose() {
    this._timers.forEach(clearTimeout);
  }

  /**
   * Determines which items are viewable based on the current metrics and config.