Playground

Try Rask directly in your browser with our interactive playground!

Open in full screen →

Features

The playground provides:

• ✨ Online editor with syntax highlighting
• ⚡ Instant execution - no setup required
• 🔗 Shareable code snippets via URL
• 📚 Example programs to explore
• 🎮 Quick experimentation without installation

How to Use

1. Write code in the left editor pane
2. Click “Run” or press Ctrl+Enter to execute
3. View output in the right pane
4. Load examples from the dropdown menu
5. Share your code with the “Share” button

Limitations

The browser-based playground has some limitations compared to local execution:

• ❌ No file I/O - fs module is disabled
• ❌ No networking - net module is disabled
• ❌ No stdin - interactive input not supported
• ✅ Most features work - math, collections, json, pattern matching, etc.

Try These Examples

Click the examples dropdown in the playground to try:

• Hello World - Basic println and output
• Collections - Working with Vec, structs, and pattern matching
• Pattern Matching - Demonstrating match expressions
• Math Demo - Mathematical operations and calculations

Local Development

For full language features including file I/O and networking:

1. Install Rask locally
2. Run the examples
3. Build real applications

Technical Details

The playground compiles the Rask interpreter to WebAssembly using wasm-pack. Code executes entirely in your browser with no server-side processing.

WASM bundle size: ~200KB gzipped Supported browsers: Chrome, Firefox, Safari (latest versions)

Source Code

The playground is open source:

• Playground UI
• WASM bindings

Feedback

Found a bug or have a suggestion? Open an issue on GitHub!