On: How to Pass a Programming Interview

[silverdrake11]

Designers have portfolios where the interviewer can see the previous work they've done

[azakai → silverdrake11]

Many developers do these days too, if they work on open source projects, or if they have significant side projects that are open source.

I definitely look at open source code of job applicants, and sometimes a part of the interview is asking them about it.

Of course that has downsides too, like anything.