Brightedge Technologies Front End Developer interview questions

Recruiter phone call, followed by a technical assignment which we need to submit within 48 hours. Was asked to create a table generation library from scratch using vanilla JS that supports filtering, searching, sorting etc. Then followed by a phone interview that lasted 30 mins. Then onsite from 9-5. Honestly, the supposedly lead engineers are very inexperienced and have no idea what they are asking. To interview a react js developer when they themselves have little to no experience with the library. Was a fun session though. Wish them all the best for the future.