[Solved] What is wrong with this observable to signal conversion code? import { signal } from '@angular/core'; import { interval } from 'rxjs'; const count = signal(0); interval(1000).... | Angular

Angular - Signals

What is wrong with this observable to signal conversion code?

import { signal } from '@angular/core';
import { interval } from 'rxjs';
const count = signal(0);
interval(1000).subscribe(value => count = value);

Asubscribe callback must return a value

BCannot assign directly to signal variable; must use set()

Csignal() cannot hold numbers

Dinterval does not emit values every second

Step-by-Step Solution

Solution:

Step 1: Understand signal immutability
Signals are immutable references; you cannot reassign the variable.
Step 2: Correct way to update signal value
Use count.set(value) inside subscribe callback to update signal value.
Final Answer:
Cannot assign directly to signal variable; must use set() -> Option B
Quick Check:
Signal update method = D [OK]

Quick Trick: Use set() to update signal value inside subscriptions [OK]

Common Mistakes:

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What is wrong with this observable to signal conversion code?