What JavaScript Is
Understand what JavaScript adds to a web page and why it matters after HTML structure is already in place.
Interaction layer
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.
Available now
Explore the lessons currently available in this track.
Variables and values
Learn how JavaScript stores information in named variables so it can be reused later.
Strings, numbers, and booleans
Meet three value types beginners see constantly in JavaScript: text, numbers, and true-or-false answers.
Basic operators
Use simple JavaScript operators to combine, compare, and change values in readable beginner examples.
Conditionals
Learn how JavaScript can choose between two paths based on whether a condition is true or false.
Functions
Learn how functions group instructions into reusable actions with names that make code easier to follow.
Events and user interaction
Connect user actions such as clicks to JavaScript responses so pages begin to feel interactive.
DOM basics
Meet the DOM as the browser's version of the page and learn why JavaScript can change it.
Debugging simple JavaScript
Practice fixing small JavaScript mistakes by reading code carefully and using the console as a clue tool.
Build your first tiny interactive page
Combine HTML, JavaScript values, events, and a simple DOM change into one approachable interactive page.
Track roadmap
Explore the 10-lesson roadmap for this track.
This roadmap shows the order students follow through the track, while saved progress, 22 Practice Labs, 52 assignments, and certificate milestones stay inside the student app.
What JavaScript Is
Understand what JavaScript adds to a web page and why it matters after HTML structure is already in place.
Variables and values
Learn how JavaScript stores information in named variables so it can be reused later.
Strings, numbers, and booleans
Meet three value types beginners see constantly in JavaScript: text, numbers, and true-or-false answers.
Basic operators
Use simple JavaScript operators to combine, compare, and change values in readable beginner examples.
Conditionals
Learn how JavaScript can choose between two paths based on whether a condition is true or false.
Functions
Learn how functions group instructions into reusable actions with names that make code easier to follow.
Events and user interaction
Connect user actions such as clicks to JavaScript responses so pages begin to feel interactive.
DOM basics
Meet the DOM as the browser's version of the page and learn why JavaScript can change it.
Debugging simple JavaScript
Practice fixing small JavaScript mistakes by reading code carefully and using the console as a clue tool.
Build your first tiny interactive page
Combine HTML, JavaScript values, events, and a simple DOM change into one approachable interactive page.
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