Angular’s Drag and Drop feature supports either horizontal or vertical orientation - but not both. There is an open Angular ticket #13372 from October 2018 where you can watch Google’s progress on this feature request. Until then I found a simple solution :).
Forget java.util.Date! Beware of java.sql.Date, Time and Timestamp! Use java.time.LocalDate, LocalTime, LocalDateTime or ZonedDateTime!
If everything fails use with caution: sudo dpkg --remove --force-remove-reinstreq package_name
RegEx: a developer's swiss knife for searching contents in text files
Ethereum: Smart Contracts, getting started using geth cli