From: rcoder <rcoder@...>
Date: 2006-02-28T12:23:36+09:00
Subject: Re: Is this Ruby warning making sense???

Writing 'if (foo = "bar")' instead of 'if (foo == "bar")' is a classic
error that has bitten many programmers, since it can be difficult while
quickly skimming the source code to determine whether the assignment
was intentional or simply a typo.

Since it's not technically invalid syntax, you just get a warning, but
I wouldn't recommend making heavy use of mixed assignment and test.

-Lennon