~/practice/runner

JavaScript Code Runner

Interactive JavaScript playground. Write, test, and debug your code with instant feedback. Perfect for experimenting with algorithms, testing solutions, and learning JavaScript concepts.

Instant Execution
Ctrl+Enter to run
🔧
Full JavaScript
ES6+, async/await
📊
Rich Console
Logs, errors, warnings
JavaScript Playground
script.js
Ctrl+Enter to run
Console Output
Ready to execute JavaScript in browser...

💡 Use console.log(), console.error(), console.warn() for output
🚀 Sandboxed execution with full async support
💡 Enhanced JavaScript Runner:
• Full async/await and Promise support
• Sandboxed execution environment
• Real-time console output capture
• Error handling and timeout protection
• Press Ctrl+Enter (⌘+Enter on Mac) to run
• Use Tab for proper code indentation

Pro Tips for Using the Code Runner

Keyboard Shortcuts:
Ctrl+Enter - Run code
Tab - Indent code
Ctrl+A - Select all
Best Practices:
• Use console.log() to debug
• Test edge cases with different inputs
• Try async/await for promises