Map doesn't exist on Observable<Object> with angular 6.0.0 and rxjs 6.1.0

Question

Hi I\'m trying to follow a tutorial on angular but the tutorial was made in September. I believe the person used angular-cli 1.3.2. I\'m not sure which version of rxjs he wa

Answer 1

pipe is a method on Observable which is used for composing operators

Here is the way how you can use the new method pipe() in Version 6:

loadProducts() {
    return this.http.get("/api/products").
        pipe(
           map((data: any[]) => {
             this.products = data;
             return true;
           }), catchError( error => {
             return throwError( 'Something went wrong!' )
           });
        )
}

Keep in mind that with Version 6 you should now use catchError and throwError instead of:catch and throw. Here is the correct import with Version 6:

import { Observable, of, throwError, ...} from "rxjs"

import { map, catchError, ...} from "rxjs/operatros"