JavaScript: Making the Web Move
Like Duolingo, but for JavaScript: Making the Web Move. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
82 levels across 9 sections, about 164 minutes end to end, roughly 33 days at five minutes a day. It moves through The Spark, Storing Information, Making Decisions, Managing Lists, Creating Reusable Logic, Controlling the Browser, Structuring Real-World Data, Professional Patterns, and Under the Hood. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in JavaScript: Making the Web Move
- HTML provides the raw content
- The console allows for immediate code execution
- CSS handles the visual styling
- The console is a built-in tool in every modern browser
- JavaScript is required to make elements respond to user actions
- Code typed in the console doesn't permanently change the website file
- The distinct roles of HTML, CSS, and JavaScript in a web page
- The purpose of the browser console for developers
- alert() interrupts the user with a dialog box
- The distinct roles of HTML, CSS, and JavaScript
- console.log() is the standard way to check values silently
- Both methods can output the result of math or logic
- The asterisk (*) is used for multiplication
- JavaScript follows standard order of operations (PEMDAS)
- Numbers are written without quotes to perform math
- Distinguishing between pop-up alerts and background logs
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives JavaScript: Making the Web Move the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What is the main benefit of using the browser's built-in console for a developer?
Get it right to open this lesson and 81 more in the app.
Where JavaScript: Making the Web Move takes you
Go from writing your first line of code to building interactive, data-driven web applications. This mastery course covers the logic, the browser, and the engine that powers the modern internet.
- 1
The Spark
- Your First Script
- 2
Storing Information
- Variables and Labels
- Strings and Text
- 3
Making Decisions
- Comparisons and Truth
- Conditional Logic
- 4
Managing Lists
- Arrays and Collections
- The For Loop
- While Loops and Conditions
- 5
Creating Reusable Logic
- Function Basics
- Scope and Visibility
- Arrow Functions
- 6
Controlling the Browser
- Selecting Elements
- Changing the Page
- Event Listeners
- 7
Structuring Real-World Data
- Objects
- JSON and Data Exchange
- 8
Professional Patterns
- Powerful Array Methods
- Handling Errors
- Modules and Organization
- 9
Under the Hood
- Asynchronous JavaScript
- The Event Loop
9 sections · 21 units · 82 levels. Built to play, not to enroll.
You pick the voice
JavaScript: Making the Web Move is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start JavaScript: Making the Web Move today.
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