Thats because there isn't any symbol parser for typescript. There is one in upstream ctags, but to add it then typescript would have to become a built-in language (at the moment its a customisation).
Becoming a built-in language requires C coding to incorporate it into Geany, and someones got to do it, the basics are in HACKING. Pull requests are welcome. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/geany/geany/issues/2442#issuecomment-587943304
