You can use just about any text or code editor for this. (ebookflightdeck.com)
The company also announced support for 15 root languages and an in - line code editor. (voicebot.ai)
Thanks to a collaboration with HackerRank, if you search for something like string concat C#, you'll get an interactive code editor with a result that can be run directly from that page to see how it works. (thenextweb.com)