Lesson 0.2Code~30 min

Your workbench

Meet the in-browser code editor: run code, draw your first plot, and pass your first check.

Module 0 · 0/2 done

A computer that does what you write

Throughout this course you’ll write small programs in TypeScript — the language behind a huge share of the web. It runs right here in your browser: no installs, no accounts, nothing to configure.

Below is your first program. It has one instruction: console.log, which means “print this”. Press Run (or ⌘/Ctrl + Enter while the editor is focused).

Try itYour first program

console.log("Hello, machine!")

Press Run (⌘/Ctrl + Enter) to see output here.

Now change the text between the quotes to anything you like and run it again. You can’t break anything here — and if you get lost, Reset brings back the original.