California is an 'at-will' work state, which means you can both be fired at-will or you can leave a company at-will with zero notice (it goes both ways). I know

California is an 'at-will' work state, which means you can both be fired at-will or you can leave a company at-will with zero notice (it goes both ways). I know, because I've done it (left, that is, with only notice given the day-of). Unless this has changed in the years since I've left CA/the US.