workbox-precaching/utils/getOrCreatePrecacheController.js

/*
  Copyright 2019 Google LLC

  Use of this source code is governed by an MIT-style
  license that can be found in the LICENSE file or at
  https://opensource.org/licenses/MIT.
*/
import { PrecacheController } from '../PrecacheController.js';
import '../_version.js';
let precacheController;
/**
 * @return {PrecacheController}
 * @private
 */
export const getOrCreatePrecacheController = () => {
    if (!precacheController) {
        precacheController = new PrecacheController();
    }
    return precacheController;
};