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index.html: star-catcher project

Explorer

folder star-catcher

html index.html

css style.css

javascript app.js

1<!DOCTYPE html>

2<body>

3 <div id="score">Score: 0</div>

4 <div id="game">

5 <div id="timer">10</div>

6 <div id="star">⭐</div>

7 </div>

8 <script src="app.js"></script>

9</body>

HTML UTF-8

`; previewContent.innerHTML = ''; codeArea.classList.add('hidden'); previewArea.classList.remove('hidden'); btnRun.classList.add('hidden'); btnCode.classList.remove('hidden'); btnCode.classList.add('flex'); }); btnCode.addEventListener('click', () => { previewArea.classList.add('hidden'); codeArea.classList.remove('hidden'); btnRun.classList.remove('hidden'); btnRun.classList.add('flex'); btnCode.classList.add('hidden'); btnCode.classList.remove('flex'); }); })();

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Built for Everyone

Whether you're just starting or building your portfolio, Spaces grows with you.

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Beginners

No setup, no confusion. Just open your browser and start coding. Perfect for your first website.

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Students & Hobbyists

Practice what you learn in tutorials. Build real projects and create a portfolio that gets noticed.

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Teachers & Schools

Give your students a coding environment that works instantly. No IT headaches.

check Works on any device
check Team management
check Integrates with W3Schools tutorials

Trusted by developers at companies worldwide

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Learn → Practice → Build

The only browser IDE connected to the world's largest web developer learning platform.

Learn from Tutorials

Free tutorials for HTML, CSS, JavaScript, Python, and more. Trusted by millions.

Practice in Spaces

Apply what you learn immediately. No context switching between learning and coding.

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Create portfolio-worthy websites. Host and share them with the world.

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Meet kAI

Your AI coding tutor, built into Spaces

Learn to code more effectively with kAI. Get instant help debugging, improving code structure, understanding concepts, or even generating complete websites from your description.

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Hi! I'm kAI, W3Schools AI Tutor. Ask me any coding question!

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I can check your code for errors, explain concepts clearly, and help you build complete websites.

Powerful Code Editor

Front-end, back-end, or full-stack - everything you need in one place.

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Cloud-Based

No installation. Access from anywhere, any device.

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Terminal & Log

Debug and troubleshoot your code in real-time.

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File Navigator

All your files in one place. Easy to manage.

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Database

Built-in database. View and manage your data.

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Package Manager

Install frameworks and libraries in one click.

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Analytics

Track visitors and understand your traffic.

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Custom Domains

Connect your own domain or use ours free.

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SSL Included

Free SSL certificate. Your site is secure.

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Practice Any Language

Master web development with these technologies.

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How It Works

From idea to live website in minutes.

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Or start from scratch with a blank project.

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What Developers Say

Join millions who learned to code with W3Schools.

★ ★ ★ ★ ★

"Finally a browser IDE that's actually simple. Spaces just works - open it and start coding."

Marcus T.

Learning Web Development

★ ★ ★ ★ ★

"kAI is like having a patient teacher. It explains my errors without making me feel stupid. Perfect for beginners like me."

Sarah K.

Computer Science Student

★ ★ ★ ★ ★

"I teach coding to 30 students. Spaces means no more 'it doesn't work on my laptop' excuses. Everyone has the same environment."

James R.

High School Teacher

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Learning to code can be hard. We make it easier with support at every step.

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kAI Assistant

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Help Center

Searchable knowledge base with guides, tutorials, and FAQs.

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Spaces in Your Classroom

Give your students a professional coding environment without the IT headaches. No installations, no configuration - just learning.

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Project-Based Learning

Students build real websites and apps, not just run exercises.

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Secure & Safe

Sandboxed environment. Students can't break anything or access harmful content.

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Privacy Compliant

GDPR compliant. No tracking of student data for advertising.

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Teacher Dashboard

Manage students, track progress, and create custom learning paths.

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Mrs. Coleman

Computer Science Teacher, Georgia State, US

"Before Spaces, I spent half of every class helping students install software. Now they just open their browser and code. It's transformed how I teach."

★★★★★ Teaching 150+ students

50%

Less setup time

IT tickets

100%

Browser-based

Frequently Asked Questions

What's the difference between Basic and Full-Stack Spaces? expand_more

Basic Spaces include HTML, CSS, and JavaScript for frontend development. Full-Stack Spaces add backend languages like Python, PHP, Node.js, React, Vue, and Django.

Can I use my own domain? expand_more

Yes! Plus users can connect their own custom domain or transfer an existing one. Trial users get a w3schools.com subdomain.

What happens if I cancel my subscription? expand_more

Your access will remain active for the duration of your paid period. After that, your space will be frozen until you unlock it again.

Can I subscribe for multiple users? expand_more

Yes! Contact sales@w3schools.com for team and school pricing.

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★ +1

Create a Website

Built for Everyone

Beginners

Students & Hobbyists

Teachers & Schools

Learn → Practice → Build

Learn from Tutorials

Practice in Spaces

Build Real Projects

Simple Pricing

Hero

Plus

Full Access

Meet kAI

Powerful Code Editor

Cloud-Based

Terminal & Log

File Navigator

Database

Package Manager

Analytics

Custom Domains

SSL Included

Practice Any Language

Start with Templates

Portfolio

Blog

Webshop

View All Templates

How It Works

Sign Up

Choose a Template

Edit Your Code

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What Developers Say

You're Never Alone

kAI Assistant

Help Center

Discord Community

W3Schools Community

Spaces in Your Classroom

Project-Based Learning

Secure & Safe

Privacy Compliant

Teacher Dashboard

Frequently Asked Questions

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