Intermediate LevelVue JS
Why is route-level code splitting essential in Vue Router and how is it implemented?
❓ Interview Prompt: Explain route lazy loading with dynamic imports (() => import(...)), Webpack/Vite chunking, and bundle size reduction.
Including all route view components directly in the initial main application bundle increases load times dramatically.
Route Lazy Loading:
Instead of static imports ('import Home from "./Home.vue"'), use dynamic imports:
'component: () => import("@/views/DashboardView.vue")'.
Bundlers (Vite/Webpack) split each lazy-loaded route into a separate JavaScript bundle chunk, downloading it over the network only when the user navigates to that specific route!
Code Implementation Example
javascript
const routes = [
{
path: '/',
name: 'home',
component: HomeView // Direct import for initial landing page
},
{
path: '/admin',
name: 'admin',
// Route-level code splitting: Loaded lazily on navigation!
component: () => import('@/views/AdminView.vue')
}
];💡Route-level code splitting using dynamic import statements.
🎯 Interview Key Takeaway
Use component: () => import(...) to lazy-load routes into separate JS bundle chunks on navigation.
#Vue Router#Code Splitting#Lazy Loading#Intermediate
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