You have two unrelated Angular components that need to share user login status. Which approach is best to communicate this data?

hard📝 Application Q15 of 15

Angular - Component Interaction

AUse a shared service with an observable to hold and broadcast the login status.

BPass data directly using @Input() and @Output() between the two components.

CUse local variables inside each component without communication.

DUse template reference variables to share data between components.

Step-by-Step Solution

Solution:

Step 1: Identify component relationship
Unrelated components do not have parent-child relation, so @Input/@Output won't work.
Step 2: Choose communication method
A shared service with an observable allows broadcasting data to any component.
Final Answer:
Use a shared service with an observable to hold and broadcast the login status. -> Option A
Quick Check:
Unrelated components communicate via shared service [OK]

Quick Trick: Use shared service for unrelated component communication [OK]

Common Mistakes:

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