spr.js

  processInventory = (widget) => {
    displayLoader();
    switch (this.action) {
      case "REQUEST": {
      const { first, inventoryItems } = this.requestInventory(
          this.inventoryItems
        );
        this.inventoryItems = inventoryItems;
        return first;
      }
      case "CLEAR": {
        return this.clearInventory();
      }
      case "ADD": {
        return this.addToInventory(widget);
      }
      case "DELETE": {
        return this.deleteFromInventory(widget);
      }
      default:
        break;
    }
  };