What exactly would you be hoping to see the candidate do in such an interview? I’m moderately experienced on the front end (mostly jQuery and React, a bit of A

What exactly would you be hoping to see the candidate do in such an interview? I’m moderately experienced on the front end (mostly jQuery and React, a bit of AngularJS) but if the task is making a SPA in vanilla JS I’d barely know where to begin. It’s pretty likely that I’d do hours of reading and researching before writing a single line of code. It would be one thing to talk about how you’d approach the task, but the GP specified their interview was apparently expecting workable code to be produced during the interview.