Property ‘throw’ does not exist on type ‘typeof observable’.ts(2339)

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Explanation:

The error message “property ‘throw’ does not exist on type ‘typeof observable’.ts(2339)” indicates that there is an attempt to call the ‘throw’ property on the ‘observable’ object, but this property does not exist on the observable object.

The ‘throw’ property was removed in the newer versions of the RxJS library. This property was previously used to create an observable that throws an error.

To solve this issue, you can use the ‘throwError’ function from the ‘rxjs’ library to create an observable that throws an error.

Here is an example:

    
import { throwError } from 'rxjs';

const errorObservable = throwError('This is an error message');
errorObservable.subscribe(
  (data) => console.log('Next:', data),
  (error) => console.error('Error:', error),
  () => console.log('Completed')
);

In this example, we import the ‘throwError’ function from the ‘rxjs’ library. This function creates an observable that emits an error with the specified error message.

We then create an observable called ‘errorObservable’ using the ‘throwError’ function and specify the error message as ‘This is an error message’.

We subscribe to the ‘errorObservable’ and provide three callback functions: one for the ‘next’ value, one for the ‘error’ value, and one for the ‘completed’ event.

When the ‘errorObservable’ emits the error, the ‘error’ callback function will be called and the error message will be logged to the console.

Please make sure that you have the latest version of the RxJS library installed to use the ‘throwError’ function.

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