Experience 4 years.

Round 1: Js code & fundamentals
Q1: question based on binary search.
Q2: concat numbers to form the largest number.
some questions on JS, try catch

Round 2: JS code & DSA
Q1: all permutations of array.
some questions on js like debounce, throttling,

Round3: HM round
discussion on work,
given a single page application in react, refactoring it by route based, application wise,

Round4: Director round
again deep discussion on work,
focussed on UI performance optimisations, web service workers, BFF layer,

Result: rejected in last round.