How do I preview a string containing unsupported Unicode characters
Flags are represented in Unicode as a 2 character string; for example the flag of Andorra is represented by Unicode pair 1F1E6 1F1E9.
- This page shows a list of flags with their corresponding Unicode pairs
- You can search for characters / emojis / flags / etc. by Unicodes and Unicode pairs in this page
For a system to be able to show them correctly, it needs a font that can show these extended character tables. Basically a font that can display emojis. These have been standard in Android- and iOS-devices for quite some time. They're also installed in MacOS (at least since Mojave) and some Linux distros. Windows seems to be still lacking these fonts.