questions on html,css, javascript ,api methods . Javascript functions , queryselector,dom manipulation.I was also asked general hr questions during the interview.i had two panelist who were interviewing me together . the level of questions wasn't difficult if you've had experience in using Java script.

It was good, staff were really nice and interview process was hard and definitely not easy just prepare basics well, that's what they need and also thoroughly go through your projects before attending interview.