TypeScript Tutorial #1: What is TypeScript? Why Use It in 2026?
TypeScript is everywhere. It became the #1 most-used language on GitHub in August 2025, surpassing Python. It now ranks among the top languages in every major developer survey. If you write JavaScript, TypeScript is no longer optional — it is expected. This tutorial series will take you from zero to confident TypeScript developer. We start here: what TypeScript actually is, and why you should learn it in 2026. What is TypeScript? TypeScript is a superset of JavaScript that adds static types. Every valid JavaScript file is already valid TypeScript. TypeScript just adds extra features on top. ...