what is lazy loading in angular with example

Example 1: how to lazyload angular

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';

const routes: Routes = [
  {
    path: 'dashboard',
    loadChildren: () => import('./modules/dashboard/dashboard.module').then(m => m.DashboardModule)
  },
  {
    path: 'projects',
    loadChildren: () => import('./modules/projects/projects.module').then(m => m.ProjectsModule)
  },
  { path: '', pathMatch: 'full', redirectTo: 'dashboard' },
];

@NgModule({
  imports: [RouterModule.forRoot(routes, { useHash: true })],
  exports: [RouterModule]
})
export class AppRoutingModule { }

Example 2: angular lazy loading images

mport { Component } from '@angular/core';@Component({  selector: 'image',  template: `    <img [defaultImage]="defaultImage" [lazyLoad]="image">  `})class ImageComponent {  defaultImage = 'https://www.placecage.com/1000/1000';  image = 'https://images.unsplash.com/photo-1443890923422-7819ed4101c0?fm=jpg';}