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irb

Nothing to display jet.

RUBY QUIZ #3 Which value is equal to a? by releu

require 'test/unit'
include Test::Unit::Assertions

a, b = "foo", nil

a = b ||= a

assert_equal a, ?

Can you answer without #irb? :)

Underscore variable in IRB by releu

Not everyone knows that _ is.

User.first
# => <User id:1 ...>
# Oups! I forgot store this var :(
_
# => <User id:1 ...>
user = _
# ...

_ variable stores last return data. Helpful!