What types of operators exist in RxJS?

In RxJS, operators are functions that allow you to create, transform, filter, and combine data streams (Observables). The main types of operators:

• Creation operators — create an Observable from various sources, such as of(), from(), interval().
• Transformation operators — modify data in the stream, such as map(), scan(), buffer().
• Filtering operators — filter stream elements, such as filter(), take(), debounceTime().
• Combination operators — combine multiple Observables, such as merge(), concat(), combineLatest().
• Error handling operators — handle errors, such as catchError(), retry().
• Utility operators — perform auxiliary actions, such as tap(), finalize().

Example of using the map operator to transform data:

import { of } from 'rxjs';
import { map } from 'rxjs/operators';

of(1, 2, 3)
  .pipe(
    map(x => x * 10)
  )
  .subscribe(console.log); // Will output 10, 20, 30