Sebastian Krüger
08026893d3
Critical fix: stopped switching selectedUnit during drag. Problem: - We were switching selectedUnit to the dragged unit - This changed the conversion base - All units maintained proportional relationships in log scale - Bars didn't visually change size because ratios stayed the same - On drag end, bars would snap back Root cause: Switching source unit doesn't change bar proportions! Example: - Start: 1 meter → 3.28 feet (feet bar at 50% in log scale) - Drag feet bar: switch to feet as source - Now: 3.28 feet → 1 meter (meter bar at 50% in log scale) - Proportions are IDENTICAL! No visual change! Solution: Keep selectedUnit stable, only change inputValue - Convert dragged value back to currently selected unit - Update inputValue with converted amount - selectedUnit stays unchanged - All conversions scale proportionally from same base - Bars resize because absolute values change! How it works now: - Dragging "feet" bar with "meters" selected - Calculate new feet value from drag position - Convert feet → meters: convertUnit(feetValue, 'ft', 'm') - Update inputValue with meter equivalent - All bars recalculate from meters (same base) - Bars resize correctly because meter input changed! Result: Bars now properly resize during drag AND stay at position on release! 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Unit Converter
A spectacular, innovative unit conversion application built with modern web technologies to provide the best user experience for converting between various measurement units.
Tech Stack
- Next.js 16 - React framework with App Router and static export
- TypeScript - Type-safe development
- Tailwind CSS 4 - Modern utility-first CSS framework
- convert-units - Comprehensive unit conversion library
Features
Supported Units
23 measurement categories with 187 individual units:
- Angle, Apparent Power, Area, Current, Digital
- Each, Energy, Frequency, Illuminance, Length
- Mass, Pace, Parts Per, Power, Pressure
- Reactive Energy, Reactive Power, Speed, Temperature
- Time, Voltage, Volume, Volume Flow Rate
Innovative UX Features
- Real-time bidirectional conversion
- Smart context-aware interface with fuzzy search
- Visual comparison with color-coded categories
- Keyboard shortcuts for power users
- Mobile-first responsive design
- Conversion history with localStorage
- Dark mode support
Getting Started
Prerequisites
- Node.js 18+ or 20+
- pnpm (recommended) or npm
Installation
# Install dependencies
pnpm install
# Run development server
pnpm dev
# Build for production
pnpm build
# Start production server
pnpm start
Open http://localhost:3000 to see the app.
Project Structure
units-ui/
├── app/ # Next.js App Router
│ ├── layout.tsx # Root layout
│ ├── page.tsx # Home page
│ └── globals.css # Global styles
├── components/ # React components (coming soon)
├── lib/ # Utility functions (coming soon)
├── public/ # Static assets
└── IMPLEMENTATION_PLAN.md # Detailed implementation plan
Development
See IMPLEMENTATION_PLAN.md for the complete development roadmap.
License
MIT
Built with Next.js 16, Tailwind CSS 4, and convert-units