14 min
Preview lesson
What JavaScript Is
Understand what JavaScript adds to a web page and why it matters after HTML structure is already in place.
Track overview
JavaScript Foundations
This track introduces JavaScript in small, readable steps so students can learn how web pages become interactive without jumping into advanced programming too early.
Starter
Public preview available
Certificate track
Access and prerequisites
Membership: Starter
Prerequisites:
- CSS Foundations
Student readiness
Public visitors can preview the lesson structure here. Protected lesson playback, progress, and certificates require a student account.
Lessons in this track
Ordered intentionally for beginners
14 min
Preview lesson
Variables and values
Learn how JavaScript stores information in named variables so it can be reused later.
14 min
Preview lesson
Strings, numbers, and booleans
Meet three value types beginners see constantly in JavaScript: text, numbers, and true-or-false answers.
14 min
Preview lesson
Basic operators
Use simple JavaScript operators to combine, compare, and change values in readable beginner examples.
14 min
Preview lesson
Conditionals
Learn how JavaScript can choose between two paths based on whether a condition is true or false.
14 min
Preview lesson
Functions
Learn how functions group instructions into reusable actions with names that make code easier to follow.
14 min
Preview lesson
Events and user interaction
Connect user actions such as clicks to JavaScript responses so pages begin to feel interactive.
14 min
Preview lesson
DOM basics
Meet the DOM as the browser's version of the page and learn why JavaScript can change it.
14 min
Preview lesson
Debugging simple JavaScript
Practice fixing small JavaScript mistakes by reading code carefully and using the console as a clue tool.
16 min
Preview lesson
Build your first tiny interactive page
Combine HTML, JavaScript values, events, and a simple DOM change into one approachable interactive page.