Ruby: Return a Boolean

If you want to return a true or false value in ruby, you could try something like:

if variable
  return true
else
  return false
end

That’s not very good. In Ruby, we don’t need to explicitly return variables:

if variable
  true
else
  false
end

This is a bit long-winded. We could try the ternary operator:

variable ? true : false

We can thin this out even more by using a double negative:

!!variable

This is performing an ‘inverse’ !variable method (which returns the opposite bool type).