Property 'do' does not exist on type 'Observable'

Question

After upgrading to Angular 6.0 and Rxjs to 6.0 I receive the following compilation error:

Property \'do\' does not exist on type \'Observable\'.

Her

Answer 1

Rxjs 6 has introduced some breaking changes and the "do" operator has been replaced by the "tap" operator (from 'rxjs/internal/operators').

You could refactor your code using the new operator or still use the old 'do' syntax by adding the rxjs-compat library for backward compatibility (npm install --save rxjs-compat).

Note that before RxJs 6 you had to import the 'do' operator :

import 'rxjs/add/operator/do';

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