Nuxt 4 in 2026: New Directory Structure and Migration from Nuxt 3
Complete guide to Nuxt 4 directory structure, migration from Nuxt 3, data fetching changes, and TypeScript improvements. Step-by-step tutorial with code examples.
Vue.js / Nuxt.js
FRONTEND
Frontend development with Vue.js as progressive framework and Nuxt.js for full-stack applications. Component-based architecture with Composition API, performant reactivity system, and hybrid rendering (SSR, SSG, SPA) to build fast and maintainable web applications.
What you'll learn
Vue.js with Composition API, <script setup> and TypeScript support
Nuxt.js with Auto-imports, file-based routing and Server Components
Powerful reactivity system (ref, reactive, computed, watch)
Single File Components (.vue) with scoped template, script and style
Nuxt Server Engine for API routes, middleware and server-side logic
State management with Pinia (modular store and TypeScript-first)
Data fetching with useFetch, useAsyncData and server-side caching
Styling with TailwindCSS, UnoCSS, CSS Modules or integrated Sass
Comprehensive testing (Vitest, Vue Test Utils, Playwright/Cypress E2E)
Performance (lazy loading, code splitting, Image optimization, Nitro engine)
Key topics to master
The most important concepts to understand this technology and ace your interviews
1
Vue.js: reactivity, Virtual DOM, templates, directives (v-if, v-for, v-model)
2
Options API vs Composition API: setup(), ref(), reactive(), computed()
3
Lifecycle hooks: onMounted, onUpdated, onUnmounted, watch, watchEffect
4
Components: props, emits, slots, provide/inject, defineExpose
5
Directives: v-bind, v-on, v-model, v-if/v-show, v-for with :key, custom directives
6
Reactivity system: ref vs reactive, toRefs, unref, shallow ref, readonly
7
Composables: logic reuse, custom hooks, state management
8
Nuxt.js architecture: pages/, components/, layouts/, middleware/, server/
9
Routing: file-based routing, dynamic routes, nested routes, route middleware
10
Data fetching: useFetch, useAsyncData, $fetch, caching strategies, SSR data
11
Server routes: API endpoints, server middleware, database integration
12
State management: Pinia stores, getters, actions, state persistence
13
Nuxt modules: auto-imports, @nuxt/image, @nuxtjs/i18n, nuxt-security
14
Rendering modes: SSR, SSG, SPA, hybrid rendering, useNuxtApp
15
Testing: component tests (Vitest, Vue Test Utils), E2E (Playwright), mocking
16
Performance: lazy components, prefetching, tree-shaking, Nitro optimization
17
SEO: useSeoMeta, useHead, sitemap generation, Open Graph
18
Deployment: Nuxt layers, environment config, Vercel/Netlify/Node.js hosting
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