This question came up because I found myself wanting to call Typescript a programming language and found myself pausing thinking of someone out there yelling that’s not right.
TLDR — Typescript site itself calls it a language and so do 2 popular colloquial sources (Stack Overflow, Github)
Official
Typescript
Refers to itself as a programming language
Wikipedia
Javascript is referred to several times
Colloquial
Stack Overflow Report
Calls Typescript a “language.” TBD on whether it’s a programming, scripting, or markup language, but ok to say language.