The phone screen wasn't technical at all, just the usual get-to-know-you call.

Onsite was very unusual. It was two hours of back-to-back interviews asking mostly about my experience, so I just expanded on my resume. There was ever only one fairly short technical conversation for the entire process.

Coding question:

• How to write a promise

This sounds simple enough, but the interviewer doesn't seem to know how to conduct the interview.

As soon as I started writing something resembling a real, usable promise, he would stop me and ask for something quite irrelevant and often just flat-out wrong. He didn't seem to know the difference between a function call's return value and a function value passed into then(). As soon as I mentioned that a promise is useless unless you know it's resolved or lift a resolved value out, he interrupted and started asking for details that just won't result in a working, usable promise implementation.

If this is how they conduct technical conversations day-to-day, I wouldn't want to work with them either.