TypeScript and JavaScript

TypeScript appeared in 33% and JavaScript in 25% of the Forward Deployed Engineer job descriptions we read. Customer integrations, web front ends and many SDKs are written in it, so engineers who work with customers need to read and write it even when their main language is Python.

The lessons assume you already know basic programming (the Python shelf is enough) and focus on what is different. Everything runs on Node.js 22.18 or later, which runs TypeScript files directly.