While the web is one of the easiest platforms for deploying software, it can also be one of the trickiest to debug. People have many different browsers, and some have plugins or settings that restrict functionality. It may be extremely difficult to reproduce errors on your development machine. As a result, we want to discover as many errors as possible before we launch a new site. With node.js and people running javascript on the server, static checks become even more important. Enter typescript! Typescript is a language that transpiles to javascript, but along the way it adds type checking and advanced javascript features. After checking the types, typescript produces javascript that can run in almost any browser. Show notes: https://www.programmingthrowdown.com/episodes/87-typescript