Vue.js 3 Mastery: Build Modern Web Interfaces with the Composition API

Composition API, improved reactivity, smaller bundle sizes, better TypeScript support.

Using Vite + Vue CLI, project structure, dev server.

Components, templates, interpolation, ref() and reactivity basics.

v-if, v-for, v-bind, v-model, and event handling.

Parent-child communication with props and emit.

Deep vs shallow reactivity, arrays and objects in state

setup(), importing ref, reactive, computed.

onMounted, onUpdated, onUnmounted, and side effects.

Abstracting logic with composables (useCounter, useAPI, etc.)

watch, watchEffect, dependency tracking, performance optimization.

Installing and setting up Vue Router with Vite or Vue CLI.

Dynamic routing, programmatic navigation, route-based guards.

Route nesting, async component loading, and code splitting.

Two-way binding, validation, controlled components

Creating stores with Pinia (Vuex alternative), modules, devtools.

Dynamic forms, composables for form validation, integration with Vuelidate.

Best practices for API integration, handling loading and errors.

Using Suspense for async rendering, <script setup> syntax benefits.

Handling runtime errors gracefully in UI components.

Use of generics with ref, reactive, and props with defineProps().

Strongly typed composables, type-safe emits and events.

Analyze component updates, identify re-renders.

Tree-shaking, splitting large apps into async chunks

Building for production, environment variables, deploying to Netlify/Vercel/Firebase.

Snapshot testing, mocking props, testing DOM changes.

Simulating user interactions, rendering parent-child hierarchies.

Running full end-to-end tests against your app