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Fix build errors for GitHub Pages deployment
- Added --noEmit flag to vue-tsc in build script - Simplified TypeScript configuration to avoid composite project issues - Removed unused imports and variables to fix TypeScript errors - Removed pnpm-workspace.yaml that was causing deployment failures - Successfully tested build locally 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
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‎package.json‎

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"type": "module",
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"scripts": {
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"dev": "vite",
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"build": "vue-tsc && vite build",
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"build": "vue-tsc --noEmit && vite build",
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"preview": "vite preview",
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"lint": "eslint . --ext .vue,.js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts --fix --ignore-path .gitignore",
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"format": "prettier --write src/"

‎simplification_ideas.md‎

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# Simplification Ideas for webr-ggplot2
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This document outlines opportunities to simplify the codebase while maintaining all functionality, making it easier to use as a starting point for others.
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## Overview
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The goal is to reduce complexity by ~40% while keeping the same user experience. This will make the project more approachable for developers who want to:
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- Understand how WebR works
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- Build their own R-in-browser applications
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- Deploy quickly without configuration overhead
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## 1. Dependency Reduction
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### Remove Unnecessary Packages
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- `@monaco-editor/loader` - Monaco is imported directly, loader not needed
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- `@rushstack/eslint-patch` - Only needed for complex monorepo setups
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- `@tsconfig/node18` - Can use inline TypeScript configuration
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- `@vue/tsconfig` - Provides minimal value over direct configuration
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- All ESLint packages - While useful, adds complexity for a demo project
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- All Prettier packages - Can be optional for those who want it
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- `pnpm-workspace.yaml` - Single package project doesn't need workspace
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### Keep Only Essential Dependencies
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- `vue` - Core framework
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- `vite` - Build tool
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- `typescript` - Type safety
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- `webr` - R runtime in browser
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- `monaco-editor` - Code editor
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- `@vitejs/plugin-vue` - Vue support for Vite
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### Package Manager
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- Switch from pnpm to npm for simpler setup
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- Remove pnpm-specific configuration files
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## 2. Component Consolidation
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### Current Structure (6 components)
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```
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components/
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├── CodeEditor.vue
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├── ExampleSelector.vue
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├── FileUpload.vue
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├── LibrarySelector.vue
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├── OutputDisplay.vue
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└── WebRStatus.vue
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```
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### Simplified Structure (4 components)
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```
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components/
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├── CodeEditor.vue # R code editor with examples dropdown
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├── OutputPanel.vue # Merged console + plots display
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├── StatusBar.vue # Merged WebR status + library info
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└── FileUpload.vue # CSV upload (unchanged)
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```
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### Specific Merges
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- **WebRStatus + LibrarySelector → StatusBar**: Single component for all status info
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- **Console logic from App.vue → OutputPanel**: Centralize output handling
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- **ExampleSelector → CodeEditor**: Examples are part of the editor experience
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## 3. Configuration Simplification
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### TypeScript Configuration
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Replace 3 config files with single `tsconfig.json`:
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```json
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{
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"compilerOptions": {
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"target": "ES2020",
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"module": "ESNext",
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"lib": ["ES2020", "DOM"],
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"jsx": "preserve",
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"moduleResolution": "node",
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"strict": true,
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"esModuleInterop": true,
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"skipLibCheck": true,
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"forceConsistentCasingInFileNames": true
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},
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"include": ["src/**/*"],
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"exclude": ["node_modules"]
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}
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```
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### Build Process
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- Remove `vue-tsc` type checking from build (keep for dev if desired)
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- Simplify scripts in package.json
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- Minimal vite.config.ts focused only on CORS headers for WebR
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### Remove Configuration Files
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- `.eslintrc.cjs`
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- `.prettierrc.json`
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- `tsconfig.app.json`
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- `tsconfig.node.json`
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- `pnpm-workspace.yaml`
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## 4. Code Pattern Improvements
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### Message Handling
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- Simplify message types to just: "output", "error", "plot"
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- Remove complex message filtering logic
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- Centralize all console handling in OutputPanel
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### Type Safety
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Replace `any` types with proper interfaces:
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- WebR instance typing
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- Message payload types
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- File upload event types
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### Remove Workarounds
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- Console.error override hack for WebR warnings
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- Complex Monaco worker configuration
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- Redundant state management between components
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### Library Management
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- Remove toggle functionality for libraries
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- Auto-install required packages (ggplot2, dplyr, ggrepel) on init
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- Simpler status display
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## 5. CSS and Styling
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### Current Issues
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- Duplicate styles across components
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- Inconsistent spacing and colors
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- Complex nested selectors
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### Improvements
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- Create CSS variables for consistent theming
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- Use utility classes for common patterns
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- Consolidate similar styles
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- Remove unused CSS
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## 6. Project Structure
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### Simplified Directory Layout
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```
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webr-ggplot2/
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├── src/
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│ ├── components/ # 4 consolidated components
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│ ├── composables/ # Single useWebR.ts
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│ ├── data/ # examples.ts unchanged
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│ ├── types/ # Proper TypeScript interfaces
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│ ├── App.vue # Cleaner layout component
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│ ├── main.ts # Minimal setup
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│ └── style.css # Consolidated styles
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├── public/ # Static assets
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├── index.html # Entry point
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├── package.json # Simplified dependencies
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├── tsconfig.json # Single TS config
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├── vite.config.ts # Minimal Vite config
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└── README.md # Clear setup instructions
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```
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## 7. Setup and Deployment
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### Current Setup
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```bash
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# Install pnpm
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npm install -g pnpm
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# Install dependencies
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pnpm install
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# Run dev server
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pnpm dev
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# Build
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pnpm build
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```
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### Simplified Setup
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```bash
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# Install and run
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npm install
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npm run dev
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# Build
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npm run build
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```
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### README Improvements
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- Quick start section at the top
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- Clear explanation of what WebR is
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- Simple deployment instructions
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- Links to WebR and ggplot2 documentation
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## 8. Code Examples
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### Simplified useWebR Composable
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- Remove redundant state
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- Cleaner initialization
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- Better error handling
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- Typed WebR instance
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### Cleaner App.vue
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- Remove console logic (moved to OutputPanel)
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- Simpler layout structure
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- Better responsive design
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- Cleaner event handling
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## 9. Benefits of Simplification
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### For Users
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- Faster setup (npm install && npm run dev)
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- Easier to understand codebase
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- Better starting point for customization
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- Fewer things that can go wrong
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### For Maintainers
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- Less dependencies to update
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- Clearer code structure
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- Easier to add features
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- Better performance
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### For Deployment
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- Smaller bundle size
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- Faster builds
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- Works out of the box
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- No configuration needed
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## 10. Implementation Priority
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1. **High Priority**
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- Remove unnecessary dependencies
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- Consolidate TypeScript configuration
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- Merge WebRStatus and LibrarySelector
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2. **Medium Priority**
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- Consolidate console handling
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- Simplify message types
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- Fix TypeScript types
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3. **Low Priority**
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- CSS improvements
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- README updates
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- Example refinements
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## Conclusion
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These simplifications will make webr-ggplot2 a cleaner, more approachable example of running R in the browser. The reduced complexity makes it an ideal starting point for developers wanting to build their own WebR-powered applications.

‎src/App.vue‎

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initializeWebR,
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executeCode,
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uploadCsvData,
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clearMessages,
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toggleLibrary,
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} = useWebR()
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‎src/components/FileUpload.vue‎

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<script setup lang="ts">
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import { ref, computed, onMounted, onUnmounted } from 'vue'
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import { ref, onMounted, onUnmounted } from 'vue'
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import type { CsvData } from '@/types'
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const emit = defineEmits<{

‎src/components/OutputDisplay.vue‎

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const props = defineProps<Props>()
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const emit = defineEmits<{
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clear: []
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}>()
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const outputRef = ref<HTMLElement>()
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const clearOutput = () => {
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emit('clear')
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}
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const scrollToBottom = () => {
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nextTick(() => {
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if (outputRef.value) {
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return plots.length > 0 ? plots[plots.length - 1] : null
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})
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const textMessages = computed(() => {
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return props.messages.filter(message => message.type !== 'plot')
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})
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watch(
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() => props.messages,

‎src/components/WebRStatus.vue‎

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loadingStatus: string
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}
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defineProps<Props>()
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</script>
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<template>

‎tsconfig.app.json‎

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{
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"extends": "@vue/tsconfig/tsconfig.dom.json",
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"include": ["env.d.ts", "src/**/*", "src/**/*.vue"],
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"exclude": ["src/**/__tests__/*"],
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"compilerOptions": {
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"composite": true,
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"baseUrl": ".",
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"paths": {
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"@/*": ["./src/*"]
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}
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}
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"extends": "./tsconfig.json"
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}

‎tsconfig.json‎

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{
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"files": [],
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"references": [
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{
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"path": "./tsconfig.node.json"
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},
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{
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"path": "./tsconfig.app.json"
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"compilerOptions": {
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"target": "ES2020",
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"useDefineForClassFields": true,
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"module": "ESNext",
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"lib": ["ES2020", "DOM", "DOM.Iterable"],
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"skipLibCheck": true,
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"moduleResolution": "bundler",
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"allowImportingTsExtensions": true,
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"resolveJsonModule": true,
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"isolatedModules": true,
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"noEmit": true,
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"jsx": "preserve",
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"strict": true,
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"noUnusedLocals": true,
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"noUnusedParameters": true,
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"noFallthroughCasesInSwitch": true,
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"baseUrl": ".",
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"paths": {
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"@/*": ["./src/*"]
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}
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]
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},
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"include": ["src/**/*.ts", "src/**/*.tsx", "src/**/*.vue"],
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"exclude": ["node_modules"]
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}

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