[Solved] Given this code snippet:const obs$ = of(1, 2, 3); obs$.subscribe({ next: x => console.log(x), error: err => console.error(err), complete: () => console.log('Done') });What will be the console output? | Angular

Angular - RxJS and Observables Fundamentals

Given this code snippet:

const obs$ = of(1, 2, 3);
obs$.subscribe({
  next: x => console.log(x),
  error: err => console.error(err),
  complete: () => console.log('Done')
});

What will be the console output?

ADone 1 2 3

B1 2 3 Done

C1 2 3

DError

Step-by-Step Solution

Solution:

Step 1: Understand observable emissions
The observable emits values 1, 2, 3 in sequence.
Step 2: Analyze subscription callbacks
The next callback logs each value, then complete logs 'Done'.
Final Answer:
1 2 3 Done -> Option B
Quick Check:
Values then complete message = 1 2 3 Done [OK]

Quick Trick: next logs values, complete logs 'Done' after all [OK]

Common Mistakes:

MISTAKES

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