My angular 12 application is large and takes time to load the first time for any user. No api is triggered until all js files are loaded. If I see in Dev Tools (js enabled), You see the below screen shot. Is there anyway I can lazy load these files? 
My angular 12 application is large and takes time to load the first time for any user. No api is triggered until all js files are loaded. If I see in Dev Tools (js enabled), You see the below screen shot. Is there anyway I can lazy load these files?
您需要在app.routing.ts中启用lazyloading路由，如下所示:
const appRoutes: Routes = [
{
path: 'foobar',
loadChildren: () =>
import('./foobar.module').then(m => m.FoobarModule),
}];
只有当用户导航到该路由时，才会加载该模块.