Bootstrapping in Angular

 Bootstrapping in the context of Angular typically refers to the process of initializing or starting an Angular application. Angular applications are typically bootstrapped in one of the following ways:

1. Manual Bootstrapping: In earlier versions of Angular (AngularJS), you would manually bootstrap your Angular application by calling the `angular.bootstrap` function in your HTML file. This method is less common in modern Angular applications.

2. Automatic Bootstrapping: In Angular 2 and later versions, the bootstrap process is typically automatic. Angular looks for a main module (usually named `AppModule`) and automatically starts the application when the page loads. This is usually done in the `main.ts` file using the `platformBrowserDynamic().bootstrapModule(AppModule)` method.

Here's a simplified example of what the `main.ts` file might look like in an Angular application:

```typescript

import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';

import { AppModule } from './app/app.module';

platformBrowserDynamic().bootstrapModule(AppModule)

  .catch(err => console.error(err));

```

3. Lazy Loading: In larger Angular applications, you might also use lazy loading to load parts of your application on-demand. This is done to improve initial load times and can be configured using the Angular Router.

Bootstrapping is a fundamental step in setting up an Angular application, and it's where Angular initializes its dependency injection system, creates the root component, and starts the application. It's worth noting that the specific implementation details may vary depending on the version of Angular you are using.