Optional parameter in cucumber

Question

I have a step definition in which I\'d like to have an optional parameter. I believe an example of two calls to this step explains better than anything else what I\'m after

Answer 1

optional.feature:

Feature: Optional parameter

  Scenario: Use optional parameter
    When I check the favorite color count
    When I check the favorite color count for email address 'john@anywhere.com'

optional_steps.rb

When /^I check the favorite color count(?: for email address (.*))?$/ do |email|
  email ||= "default@domain.com"
  puts 'using ' + email
end

output

Feature: Optional parameter

  Scenario: Use optional parameter
    When I check the favorite color count
      using default@domain.com
    When I check the favorite color count for email address 'john@anywhere.com'
      using 'john@anywhere.com'

1 scenario (1 passed)
2 steps (2 passed)
0m0.047s