When looking at this question, I noticed that the syntax highlighting wasn't that great, most likely due to the mix of one block with HTML and Angular2 and blocks with TypeScript.
I decided to improve it by adding the necessary language hints --
<!-- language: lang-or-tag-here --> -- but looking through the canonical answer on the main Meta site, I cannot find either TypeScript or Angular2+ .
Is there support for these two languages and is it simply not documented? Or are these missing?