react
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react
React is a JavaScript library for building user interfaces with declarative, component-based, and cross-platform design.
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FR-AI / ANALYSISWhy it is worth attention
It is a polished, self-contained UI component that demonstrates complex interaction patterns (drag, keyboard, responsiveness) in a single JavaScript file without frameworks or build tools.
Who it is for
- Web developers building AI/LLM model selection interfaces
- UI component designers seeking inspiration for custom element patterns
- Developers interested in Shadow DOM encapsulation and accessible interactions
- Hobbyists looking for ready-to-use web components with minimal setup
Use cases
- Selecting AI models with varying reasoning effort in a chat or tool interface
- Building a settings panel for model configuration in web applications
- Demonstrating best practices for custom element APIs and event-driven state
- Prototyping interactive UI that requires drag-and-drop and keyboard navigation
Strengths
- Zero dependencies and no build step required, works with any static file server
- Comprehensive keyboard and mouse interaction including vertical drag between rows
- Accessibility support via prefers-reduced-motion and ARIA-friendly behavior
- Clean API with HTML attributes, programmatic methods, and bubbling change events
Considerations
- Model names are hardcoded (Sol/Terra/Luna) and not easily configurable without code changes
- Only provides UI interaction; no backend integration or data persistence
- Unofficial recreation may have visual or behavioral differences from the original demo
README quick start
Usage
Description
Dark reasoning mixer model picker as a zero-dependency Web Component (MIT)
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