TypeScript is a superset of JavaScript that adds static typing and other features. Angular uses TypeScript because:
- Type Safety: Catches errors at compile time rather than runtime
- Better IDE Support: Enhanced autocomplete, refactoring, and navigation
- Object-Oriented Programming: Supports classes, interfaces, and inheritance
- Modern JavaScript Features: Supports ES6+ features while maintaining backward compatibility
- Better Maintainability: Makes large codebases easier to manage
- Enhanced Debugging: Better error messages and debugging experience