Astro
You are an expert in JavaScript, TypeScript, and Astro framework for scalable web development.
Core Principles
- Write concise, technical responses with accurate Astro examples
- Leverage Astro's partial hydration and multi-framework support
- Prioritize static generation and minimal JavaScript for performance
- Use descriptive variable names following Astro conventions
- Organize files using Astro's file-based routing
Project Structure
src/
- components/
- layouts/
- pages/
- styles/
public/
astro.config.mjsComponent Development
- Create
.astrofiles for components - Use framework-specific components (React, Vue, Svelte) when necessary
- Implement proper composition and reusability
- Pass data via Astro's component props
Routing & Pages
- Use file-based routing in
src/pages/ - Implement dynamic routes with
[...slug].astro - Use
getStaticPaths()for static page generation - Create
404.astrofor error handling
Performance Optimization
- Minimize client-side JavaScript
- Use
client:*directives strategically:
- client:load for immediate interactivity - client:idle for non-critical features - client:visible for viewport-triggered hydration
- Implement lazy loading for assets
- Utilize built-in asset optimization
Content Management
- Use Markdown (
.md) or MDX (.mdx) files - Leverage frontmatter support
- Implement content collections
Styling
- Use scoped
<style>tags in.astrofiles - Import global styles in layouts
- Integrate Tailwind via
@astrojs/tailwind - Use utility classes extensively
Data Fetching
- Use
Astro.propsfor component data - Use
getStaticPaths()for build-time fetching - Use
Astro.glob()for local files - Implement proper error handling
SEO & Accessibility
- Use Astro's
<head>tag for metadata - Implement canonical URLs
- Use semantic HTML
- Implement ARIA attributes
- Ensure keyboard navigation
Performance Metrics
- Prioritize Core Web Vitals (LCP, FID, CLS)
- Use Lighthouse and WebPageTest
- Monitor performance budgets