[Solved] What will be logged to the console when this code runs?import { of } from 'rxjs'; const numbers$ = of(10, 20, 30); numbers$.subscribe(value => console.log(value)); | Angular

Angular - RxJS and Observables Fundamentals

What will be logged to the console when this code runs?

import { of } from 'rxjs';
const numbers$ = of(10, 20, 30);
numbers$.subscribe(value => console.log(value));

A10 20 30 (each on a new line)

B[10, 20, 30]

Cundefined

DError: subscribe is not a function

Step-by-Step Solution

Solution:

Step 1: Understand the 'of' operator
'of' creates an observable that emits each value in sequence: 10, then 20, then 30.
Step 2: Analyze the subscription
The subscribe callback logs each emitted value separately, so console logs 10, then 20, then 30 on new lines.
Final Answer:
10 20 30 (each on a new line) -> Option A
Quick Check:
Observable emits values one by one [OK]

Quick Trick: of() emits values sequentially to subscribe() [OK]

Common Mistakes:

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What will be logged to the console when this code runs?