Does TypeScript have BeautifulSoup? TypeScript seems very appealing to me (a C# programmer) but it also seems like Python lets you write more concise text/XML/HTML processing code and already has particularly helpful libraries for this. Also, virtually everybody writes at least some Python which makes it a perfect language for user-developed extensions.

I don't mean TypeScript is much worse. Python just is the first thing to come to my mind as "right tool for the job" when it's about textual content processing. I'm not saying "please implement Python support instead", I'm just explaining why I've mentioned Python first. TypeScript is great too.