how to use the emptyerror function from the rxjs library in typescript

To use the EmptyError function from the rxjs library in TypeScript, you can import the function from rxjs and then use it in your code.

Here is an example:

index.ts
import { EmptyError } from 'rxjs';

// Example usage in a function that returns an Observable
function getItems(): Observable<Item[]> {
  return someApiCall().pipe(
    catchError((error) => {
      if (error instanceof EmptyError) {
        // handle empty response error 
      }
      throw error;
    })
  );
}
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In this example, EmptyError is used in the catchError handler of an Observable. If the error that is caught is an instance of EmptyError, the code inside the if block will be executed. If not, the error will be rethrown for further handling.

Keep in mind that EmptyError is typically thrown by the first and last operators when they encounter an empty Observable.