[Solved] What will be the output of this Angular code?const promise = new Promise(resolve => { console.log('Promise started'); resolve('Done'); }); promise.then(value => console.log(value)); console.... | Angular

Angular - RxJS and Observables Fundamentals

What will be the output of this Angular code?

const promise = new Promise(resolve => {
  console.log('Promise started');
  resolve('Done');
});
promise.then(value => console.log(value));
console.log('After promise');

APromise started After promise Done

BPromise started Done After promise

CAfter promise Promise started Done

DDone Promise started After promise

Step-by-Step Solution

Solution:

Step 1: Understand Promise executor execution
The executor function runs immediately, so 'Promise started' logs first.
Step 2: Understand Promise.then timing
Then callback runs asynchronously after current synchronous code, so 'After promise' logs before 'Done'.
Final Answer:
Promise started
After promise
Done -> Option A
Quick Check:
Promise executor sync, then async [OK]

Quick Trick: Promise executor runs sync; then runs async [OK]

Common Mistakes:

MISTAKES

Assuming then runs immediately
Confusing order of console logs
Thinking all code runs asynchronously

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More Angular Quizzes

What will be the output of this Angular code?

Step 1: Understand Promise executor execution

Step 2: Understand Promise.then timing

Final Answer:

Quick Check:

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