Interview was easy I answered all the questions currently the interview was scheduled for 30mins but the interviewer took only 20mins and no coding was asked he didn't interviewed me fully and didn't select me as well

My interview got postponed twice and even I joined late in night. Third time when we connected interviewer started asking questions saying he only had thirty minutes, started with basic questions and raised the difficulty of questions when I didn't answer the last two questions he stopped the interview there where still 10min left and when I said I will explain about my project he said you don't have to you don't even have the knowledge and said there are people who have more knowledge with less experience. I know I am not an expert and I don't know all the things but you shouldn't judge people solely because they don't know something. I am a full stack developer it is hard to know everything in each language.