vue-patterns

Vue.js Patterns and Best Practices

Comprehensive guide for Vue.js 3 development using Composition API (<script setup>), covering component design, reactivity, state management, routing, testing, and SSR patterns. Nuxt-specific guidance is included where it differs from vanilla Vue.

When to Activate

Activate this skill when:

• The project uses Vue.js (any version), Nuxt, Vite + Vue, or Pinia.
• The user asks about Vue component architecture, composables, reactivity, or state management.
• Reviewing Vue Single-File Components (.vue files).
• Setting up Vue Router, Pinia stores, or Vite/Vitest configuration.
• Discussing Vue-specific performance, security, or SSR patterns.

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1. Project Structure

Recommended Layout (Feature-First)

src/
├── api/              # API client and endpoint definitions
├── assets/           # Static assets (images, fonts, icons)
├── components/       # Shared/reusable components
│   ├── base/         # Base UI primitives (Button, Input, Modal)
│   └── features/     # Feature-specific shared components
├── composables/      # Reusable Composition API logic
├── layouts/          # Page layouts (optional)
├── pages/            # Route-level page components
├── router/           # Vue Router configuration
├── stores/           # Pinia stores
├── types/            # TypeScript type definitions
├── utils/            # Pure utility functions
└── App.vue           # Root component

File Naming

Convention	When to Use
PascalCase.vue	All components (enforced by vue/multi-word-component-names)
useCamelCase.ts	Composables
camelCase.ts	Utilities, API clients, types
kebab-case directories	Route segments, feature folders

---

2. Component Architecture

Single-File Component Order

<script setup lang="ts">
// 1. Imports (vue → ecosystem → absolute → relative)
// 2. Props & Emits & Slots
// 3. Composables
// 4. Local state (ref/reactive)
// 5. Computed properties
// 6. Methods
// 7. Watchers
// 8. Lifecycle hooks
</script>

<template>
  <!-- Template content -->
</template>

<style scoped>
  /* Scoped styles */
</style>