Learn JavaScript and Python, and write the code right on the page

Short, simple lessons where you can try every example yourself, right here on the page. Change the code, hit Run, and see what happens. Whether you’re studying for the Baccalaureate or writing your very first line of code, this was made for you.

JavaScript Python

JavaScript

let name = "Source Code";
for (let i = 1; i <= 3; i++) {
  console.log(i + ". Hello from " + name);
}

Console

1. Hello from Source Code
2. Hello from Source Code
3. Hello from Source Code

Python

name = "Source Code"
for i in range(1, 4):
    print(str(i) + ". Hello from " + name)

Console

1. Hello from Source Code
2. Hello from Source Code
3. Hello from Source Code

JavaScript

The language of the web: from your first console line to a complete web page.

25 lessons in 6 units

Getting started
Making decisions
Loops
Functions
Arrays
Web pages

Start the path

Python

An easy-to-read language used for data analysis and AI.

18 lessons in 5 units

Getting started
Making decisions
Loops
Functions
Lists and arrays

Start the path