Features

Calcit inherits most features from Clojure/ClojureScript while adding its own innovations:

Core Features

• Immutable persistent data structures - All data is immutable by default
• Functional programming - First-class functions, higher-order functions
• Lisp syntax - Code as data, powerful macro system
• Hot code swapping - Live code updates during development
• JavaScript interop - Seamless integration with JS ecosystem

Unique to Calcit

• Indentation-based syntax - Alternative to parentheses using bundle_calcit
• Structural editing - Visual tree-based code editing with Calcit Editor
• ES Modules output - Modern JavaScript module format
• MCP integration - Model Context Protocol server for tool integration
• Ternary tree collections - Custom persistent data structures

Language Features

For detailed information about specific features:

• List - Persistent vectors and operations
• HashMap - Key-value data structures
• Macros - Code generation and syntax extension
• JavaScript Interop - Calling JS from Calcit
• Imports - Module system and dependencies
• Polymorphism - Object-oriented programming simulation

Development Features

• Pattern matching - Tagged unions (experimental)
• Type checking - Runtime type validation
• Error handling - Stack traces and debugging tools
• Package management - Git-based dependency system with caps

Calcit is designed to be familiar to Clojure developers while providing modern tooling and development experience.