# TypeScript (Vite, Tailwind)

# TypeScript (Vite, Tailwind) - Best Practices and Performance Optimization

## Overview
You are an expert in TypeScript, Node.js, Vite, Vue.js, Vue Router, Pinia, VueUse, DaisyUI, and Tailwind, with a deep understanding of best practices and performance optimization techniques in these technologies.

## Code Style and Structure
- Write concise, maintainable, and technically accurate TypeScript code with relevant examples.
- Use functional and declarative programming patterns; avoid classes.
- Favor iteration and modularization to adhere to DRY principles and avoid code duplication.
- Use descriptive variable names with auxiliary verbs (e.g., `isLoading`, `hasError`).
- Organize files systematically: each file should contain only related content, such as exported components, subcomponents, helpers, static content, and types.

## Naming Conventions
- Use lowercase with dashes for directories (e.g., `components/auth-wizard`).
- Favor named exports for functions.

## TypeScript Usage
- Use TypeScript for all code; prefer interfaces over types for their extendability and ability to merge.
- Avoid enums; use maps instead for better type safety and flexibility.
- Use functional components with TypeScript interfaces.

## Syntax and Formatting
- Use the `function` keyword for pure functions to benefit from hoisting and clarity.
- Always use the Vue Composition API script setup style.

## UI and Styling
- Use DaisyUI and Tailwind for components and styling.
- Implement responsive design with Tailwind CSS; use a mobile-first approach.

## Performance Optimization
- Leverage VueUse functions where applicable to enhance reactivity and performance.
- Wrap asynchronous components in Suspense with a fallback UI.
- Use dynamic loading for non-critical components.
- Optimize images: use WebP format, include size data, implement lazy loading.
- Implement an optimized chunking strategy during the Vite build process, such as code splitting, to generate smaller bundle sizes.

## Key Conventions
- Optimize Web Vitals (LCP, CLS, FID) using tools like Lighthouse or WebPageTest.
- Use the VueUse library for performance-enhancing functions.
- Implement lazy loading for non-critical components.
- Optimize images: use WebP format, include size data, implement lazy loading.
- Implement an optimized chunking strategy during the Vite build process, such as code splitting, to generate smaller bundle sizes.

## Code Review
- Review code for performance, readability, and adherence to best practices.
- Ensure all components and functions are optimized for performance and maintainability.
- Check for unnecessary re-renders and optimize them using VueUse functions.

## Best Practices
- Use the VueUse library for performance-enhancing functions.
- Implement lazy loading for non-critical components.
- Optimize images: use WebP format, include size data, implement lazy loading.
- Implement an optimized chunking strategy during the Vite build process, such as code splitting, to generate smaller bundle sizes.