Walmart Developer interview questions

I applied through employee's referral. The technical round was straightforward but on-site was difficult. In the technical round, one data structure questions, i.e., hashmap, one algorithm question, were asked. In on-site, I had algorithm related questions and went over resume together. Third and fourth round were design questions.

The first interview was a live online coding challenge, I had the question about how to get the least amount of coins for giving change. After that, I had a 5-6 hour in person interview on the Carlsbad campus. Two of the interviewers were remote from the Sunnyvale office. All of them had you do whiteboarding/live coding session. Questions included: - Networking / how does the internet work - Fibonacci using recursion and not using recursion - Currying - Closures - Find the highest and lowest sum out of an array - Using reduce to change an array of objects to one object - shuffle a deck of cards - Implement your own forEach - Performance of JS array functions - How do you think Youtube works? Overall I thought it was not too bad, I thought I did well. I was kind of surprised when I didn't get an offer. There was one interviewer that I think didn't like me, he was condescending and bad at communicating. I would ask him what he wanted, he would give me a one word answer, and when I tried to continue he would tell me "no not that way". And when I didn't know something, I admitted it, but he wouldn't move on from there.