There are 4 rounds of interview:

1. Advanced JS Questions, vanilla js
2. Machine coding
3. Manager round
4. Fitment round

In the first round, I was asked to make the To-Do List in vanilla JS. After that, I had to make some header, footer, and body, which was a CSS task. I was able to do these tasks.

The interviewer asked about React JS questions, event bubbling, capturing, SSR, and CSR. I gave the answer to all the questions. In CSR, I struggled to give an exact use case. Also, I was asked what features are coming in newer versions of React. I couldn't answer that. How to resolve CORS? I couldn't answer that as well.

So, 2-3 questions I struggled to answer 100%. Based on this experience, they rejected me after the first round, which I think is very unusual. I was able to make the To-Do List and CSS task, but still, they rejected me.

I tried calling HR about the interview, stating that it went well, and I didn't expect the rejection email. They told me they would check, but since then, they have been ghosting. So, till now, this is the worst interview experience I have had in my life.

1. Vanilla JS - Todo lists

2. Make a header, body, and footer. The header should be at the top, and the footer should be at the bottom regardless of the screen size.

3. React.memo, useMemo, and useCallback differences

4. SSR and CSR

5. Which React.js version are we using? What is the current version? What features are coming in upcoming React versions?

6. Event bubbling and capturing