Function debounced

overlay/utils.js:17–25

* @returns {void}

()

   * @returns {void}
   */
  function debounced() {
    const context = this;
    const args = arguments;

    clearTimeout(timer);
    timer = setTimeout(function () {
      return fn.apply(context, args);
    }, wait);
  }

  return debounced;
}