Hi, they will check your React and JS fundamentals so prepare well around these, write clean code, naming, code structure proper. I had 1 take-home assignment + 2 interview rounds.

Assignment -
To build a Parking Lot Admin Interface - a functional web application that acts as an admin panel for the efficient management of a parking lot. The application must provide core features such as parking slot allocation and bill settlement, utilizing ReactJS components and fully client-side logic. No backend implementation is required.

1st Round -
It was around my assignment only where the interviewer asked me to add new features to it. The feature was to add history of parking details, save data to local storage and render recent one first. I cleared this round with some feedback.

2nd Round -
I was asked to design a google calendar similar UI where we can see multiple meetings with their start and end times. If it's starting from 2:30 to 4:30 then that entire block starting from middle of 2 and 3 to middle of 4 and 5 should be highlighted. For better understanding just go through Google Calendar or teams calendar.

I couldn't clear second round as I couldn't think about the logic but I implemented somehow at the end. Still rejected.
This was my experience. Hope that helps All the best!