[Solved] Given this route configuration, what happens when the user navigates to '/profile'? { path: 'profile', loadChildren: () => import('./profile/profile.module').then(m => m.ProfileModule) } | Angular

Angular - Performance Optimization

Given this route configuration, what happens when the user navigates to '/profile'?

{ path: 'profile', loadChildren: () => import('./profile/profile.module').then(m => m.ProfileModule) }

AProfileModule is loaded immediately when the app starts

BNavigation to '/profile' will fail due to missing component

CThe ProfileModule is loaded only when '/profile' is visited

DThe app preloads ProfileModule regardless of navigation

Step-by-Step Solution

Solution:

Step 1: Understand lazy loading behavior
Using loadChildren with dynamic import means the module loads only on navigation to that route.
Step 2: Analyze options
The ProfileModule is loaded only when '/profile' is visited correctly states the module loads on demand. ProfileModule is loaded immediately when the app starts is wrong because lazy loading delays loading. Navigation to '/profile' will fail due to missing component is incorrect as module contains components. The app preloads ProfileModule regardless of navigation describes preloading, which is not shown here.
Final Answer:
The ProfileModule is loaded only when '/profile' is visited -> Option C
Quick Check:
Lazy loaded module loads on route visit = true [OK]

Quick Trick: Lazy loaded modules load only when their route is accessed [OK]

Common Mistakes:

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Given this route configuration, what happens when the user navigates to '/profile'?