Which RxJS import is required to use catchError in Angular?

easy🧠 Conceptual Q2 of 15

Angular - RxJS Operators

Which RxJS import is required to use catchError in Angular?

Aimport { catchError } from '@angular/core';

Bimport { catchError } from 'rxjs';

Cimport { catchError } from 'rxjs/operators';

Dimport { catchError } from 'rxjs/internal';

Step-by-Step Solution

Solution:

Step 1: Identify the correct import path
The catchError operator is part of RxJS operators and must be imported from 'rxjs/operators'.
Step 2: Eliminate incorrect imports
It is not directly from 'rxjs' or Angular core, and internal paths are not for public use.
Final Answer:
import { catchError } from 'rxjs/operators'; -> Option C
Quick Check:
catchError import = 'rxjs/operators' [OK]

Quick Trick: Always import catchError from 'rxjs/operators' [OK]

Common Mistakes:

MISTAKES

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