Nuxt 4: Modern Web Development Best Practices

Nuxt 4 brings significant improvements and new patterns for building modern web applications.

What's New in Nuxt 4

The latest version introduces:

• Enhanced TypeScript Support: Better type inference and IDE support
• Improved Auto-imports: Smarter component and composable imports
• Better Performance: Optimized build times and runtime performance
• Modern Folder Structure: The app/ directory for better organization

File-Based Routing

One of my favorite features is the intuitive routing system:

app/
  pages/
    index.vue          → /
    blog/
      index.vue        → /blog
      [...slug].vue    → /blog/:slug
    projects.vue       → /projects

Auto-Imports

No more manual imports for commonly used utilities:

<script setup lang="ts">
// All auto-imported - no imports needed!
const route = useRoute()
const { data } = await useFetch('/api/data')
const toast = useToast()
</script>

Composables Pattern

Creating reusable logic is incredibly clean:

// composables/useProjects.ts
export const useProjects = () => {
  const projects = useState('projects', () => [])
  
  const fetchProjects = async () => {
    const data = await $fetch('/api/projects')
    projects.value = data
  }
  
  return { projects, fetchProjects }
}

Performance Tips

1. Use useFetch and useAsyncData for data fetching
2. Lazy load components with the Lazy prefix
3. Optimize images with @nuxt/image
4. Enable compression in production
5. Use Nitro's caching for API routes

Conclusion

Nuxt 4 makes building modern web applications a joy. The developer experience is unmatched, and the performance is excellent.