last result in Ruby REPL

Question

In the Scala REPL if you evaluate something its value is stored in res{N}, as is discussed here: How can I access the last result in Scala REPL?. Is there a similar feature for the ruby REPL, or do the results get lost if you don't capture their value in a variable?

Answer 1

You can use the underscore _ in irb to refer to the last returned result:

1 + 5
# => 6

_ + 10
# => 16