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

To use the UnsubscriptionError function from the rxjs library in TypeScript, you need to import it first. Here's an example:

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

try {
  // Your observable logic here
} catch (error) {
  if (error instanceof UnsubscriptionError) {
    // Handle unsubscription error
  } else {
    // Handle other errors
  }
}
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In the code above, we first import the UnsubscriptionError function from the rxjs library. Then, we wrap our observable logic in a try-catch block to catch any errors thrown during its execution.

If the error caught is an instance of UnsubscriptionError, we handle it as a specific type of error. Otherwise, we handle it as a generic error.

This is an example of how you can use the UnsubscriptionError function in TypeScript to handle errors in observables.