Make sure to be sure
Resignation is a serious matter and no matter how advanced technology becomes there does not seem to be a particular “undo” button should you decide you would like to take the resignation back. You need to be absolutely sure that resignation is what you want because once you walk that road turning back is not without consequences. Ideally, you should have signed another contract before putting in your resignation to the previous company. A promise of employment, a plausible cause of employment, promises made by family and friends do not qualify as a strong enough reason to resign. It might sound harsh, but in these times, jobs are hard to come by – so make sure to be sure about it.