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Chapter 73: TypeScript Fundamentals for AI Engineers

Get fluent in the language of user-facing AI. This chapter builds a TypeScript fundamentals skill focused on type safety for AI responses, tool calls, and streaming data.

Goals​

  • Master core TypeScript syntax and type system (unions, generics, narrowing)
  • Translate Python mental models to TypeScript idioms
  • Set up modern tooling (tsconfig, bundlers, package managers)
  • Model AI payloads with precise types

Lesson Progression​

  • Language basics and type system
  • Modern syntax and tooling setup
  • Type modeling for AI responses/tool calls
  • Capstone: type-safe utilities; finalize the fundamentals skill

Outcome & Method​

You finish with a fundamentals skill and starter utilities for type-safe AI data structures across Node/Deno/Edge/browser targets.

Prerequisites​

  • Part 5 Python foundations; Part 6 agent patterns