What does =~ in ruby mean?
I tried to get help on codementor.io recently and the change made to this tutorial:
http://sourcey.com/rails-4-omniauth-using-devise-with-twitter-facebook-and-linkedin/
was to replace this line:
self.email && self.email !~ TEMP_EMAIL_REGEX
with this line:
self.email && TEMP_EMAIL_REGEX =~ self.email
What does =~ mean?