The interviewer had too much ego. I give all the right answers to the JavaScript questions and got the precise output for the react native coding round. Prior to the I gave them a typescript based take home coding assignment which I am pretty sure, even they are not aware about tech stack I used. It is really the pathetic interview I attended in my whole life. When I asked for feedback, no comments, but straight away rejected after showcasing my skills. These kind of people are the reasons companies lose capital.