How can I configure lazy loading for Angular modules

Question

With the help of proper code, can you explain how I can configure lazy loading for Angular modules?

Answer 1

To configure lazy loading in Angular, you divide your application into feature modules and load them on demand. Here's a step-by-step guide:

Create a Feature Module: Use Angular CLI to generate a feature module. 

For example:

ng generate module feature-name --route feature-path --module app.module

This command sets up routing for the feature module.

Define Routes in the App Module: Use the loadChildren property in the app routing configuration to specify the feature module to be loaded lazily:

const routes: Routes = [

    {

        path: 'feature-path',

        loadChildren: () => import('./feature-name/feature-name.module').then(m => m.FeatureNameModule),

    }

];

Set Up the Feature Module: Ensure the feature module has its own routing configuration (if required). Use RouterModule.forChild(routes) for feature routing.

Test the Configuration:Run the application and navigate to the route corresponding to the lazily loaded module. Observe that the module's JavaScript file is only loaded when the route is accessed.