Intro to Programming

A beginner-facing orientation to programming: what code is, how to read errors, and how this site’s tracks fit together.

Without shared vocabulary and study habits, every other track feels harder than it needs to be.

Start here before language-specific tracks—useful for career switchers, students, and self-taught developers.

Short read-only lessons with interview-style Q&A; no playground required. Follow the listed lesson order top to bottom.

Your first week on the platform, or whenever you feel lost about “where to start” or how lessons are structured.