()
| 118 | |
| 119 | let _instance = null; |
| 120 | function getReadTracker() { |
| 121 | if (!_instance) _instance = new ReadTracker(); |
| 122 | return _instance; |
| 123 | } |
| 124 | function resetReadTracker() { if (_instance) _instance.reset(); } |
| 125 | |
| 126 | module.exports = { ReadTracker, getReadTracker, resetReadTracker }; |