Learn TypeScript — Your First Language for the AI Era | Sololearn
★★★★★ “The Duolingo of programming”

TypeScript, your first language for the AI era.

Never coded before? Start from zero and run real code in minutes. Learn the language that just hit #1 on GitHub — and the types that let you trust what AI writes.

See the course

No experience needed · 35M+ learners · 4.8★ App Store · 4.5★ Google Play

Why TypeScript

The AI era has a
favourite language.

  • #1 language on GitHub
  • What AI coding tools speak
  • Types make code trustworthy
  • The language of the web
  • One skill, endless projects
  • Friendly from line one
The course

One course. Nine modules. Zero to real programs.

Bite-sized lessons, runnable code on nearly every concept, and 25 themed coding challenges along the way. Scroll the stages.

01

First steps

Modules 1–3

Run your first line of real TypeScript within minutes — no installs, everything runs right in the app. Then make the language yours: print output, store values in variables, and meet the everyday types — text, numbers, and yes/no values.

Printing output · Variables · Everyday types
02

Think in code

Modules 4–6

Start thinking the way programmers do. Do math and build messages, compare values and combine logic, and teach your programs to make decisions with if and else.

Math & messages · Comparisons & logic · Decisions
03

Real programs

Modules 7–9

Put it all together: repeat work with loops, organise code into typed functions, and model real data with arrays, objects and union types — the type-safety payoff that lets you read anyone’s code. Including AI’s.

Loops · Functions · Arrays, objects & union types

Your TypeScript certificate

The finish line

Finish the course and earn a certificate that proves your TypeScript skills — ready for your CV or LinkedIn.

ShareableVerifiable credential
Why it works

Not just videos. A place you actually do the work.

No setup, ever

Write real TypeScript. Run it in minutes.

No installs, no setup, no “which editor do I use?” Your very first lesson has you running real TypeScript right in the app — and from then on, there’s runnable try-it-yourself code on nearly every concept you meet.

  • Nothing to install — runs right in the app
  • Try-it-yourself code in nearly every lesson
  • Also on Android & iOS
The AI-era skill

Read AI’s code. Catch its mistakes.

AI can write code for you — but only you can decide whether to trust it. Types are how: they make code state its promises, so a broken promise shows up before it becomes a bug. That’s the skill this whole course is built around.

  • Understand code you didn’t write
  • Spot mistakes before they run
  • Stay the one in control
Meet Kodie

Stuck? Kodie codes with you.

Sololearn’s AI mentor is one tap away in the editor. Ask Kodie to explain your code, find a bug, drop a hint, or walk you through a solution — always in plain English, right where you’re stuck.

  • Explain the code, find a bug, hint or solution
  • Plain-English help, exactly where you need it
  • Included with Sololearn MAX
Practice-first

Bite-sized lessons. Hands-on from page one.

Short swipeable pages and interactive questions instead of passive reading — plus 25 themed coding challenges spread through the course, review checkpoints mid-module, and a quiz at the end of every module. It sticks because you do it.

  • Interactive questions, not passive reading
  • 25 themed coding challenges
  • A quiz at the end of every module
35M+learners on web, Android & iOS
4.8App Store rating
4.5Google Play · 100K+ reviews
In their words

People who started exactly where you are.

★★★★★
Sololearn is one of the best websites for beginners who want to learn coding in a simple and fun way. The lessons are short, clear and simple, with small quizzes and coding practice after each one — which helps you learn faster.
Rahmanullah T.Trustpilot · US
★★★★★
A perfect starting point. Short, on-point, with hands-on use of what you just learned.
IrakliTrustpilot · ES
★★★★★
Programming was far easier than other platforms make it look. Every lesson is bite-sized, with a review question before each one. 95 days non-stop.
SamuelVerifiedTrustpilot · NG
★★★★★
Love it for learning to code on the go — it teaches without ever feeling overwhelming. I’m on a 93-day streak and loving it.
ClaytonVerifiedTrustpilot · US
Good to know

Questions,
answered.

Do I need any experience to start?

None at all. TypeScript for Beginners is a first-language course — it assumes you’ve never written a line of code, and builds one small idea at a time, each explained through everyday analogies instead of jargon.

Do I need to install anything?

No. Everything runs right in the app — you’ll write and run your first line of real TypeScript within minutes of starting, with nothing to set up.

Why TypeScript first — isn’t it advanced?

TypeScript just became the #1 language on GitHub, lifted by the rise of AI-assisted coding. Starting here means your first language is the one the modern web — and AI — actually uses. And types make code easier to trust, not harder to learn: the course assumes zero experience.

If AI writes code now, why learn to code?

Because someone has to check it. The valuable skill in the AI era isn’t typing code — it’s being able to read it, catch its mistakes, and stay in control. Understanding types is exactly what makes that possible, and it’s what this course is built around.

What if I get stuck?

Tap “Stuck?” and Kodie — Sololearn’s AI mentor — will explain your code, find a bug, give you a hint, or walk you through a solution, all in plain English. Kodie is part of Sololearn MAX.

Do I get a certificate?

Yes. Finish the course and you earn a TypeScript certificate you can add to your CV or LinkedIn — proof of what you can do.

Start today

Your first line of TypeScript
runs in the next few minutes.

Start from zero, learn one small idea at a time, and finish able to write — and read — real code in the AI era.

No experience needed · learn at your own pace