Developer: If they're reasonable in subject scope, length and proportional to the rest of the interview (not to mention the level - you probably don't want to do a code quiz for a senior position: that's a serious red flag, highly correlated with micromanagers), why not.

Interviewer (many hats here): A _brief_ quiz is a useful highpass filter for junior-level positions ("Ugg set clock on microwave! Ugg programmer now!"), and a possible conversation starter ("what, why & how").