[GROOVY-2073] add DGM combinations methods

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.1-beta-2
• Fix Version/s: 1.1-beta-3
• Component/s: groovy-jdk
• Assignee: Paul King
• Reporter: Paul King
• Created: 19/Aug/07 01:59
• Updated: 07/Apr/15 19:13
• Resolved: 19/Aug/07 15:20

Description

def lists = [['a', 'b'], [1, 2, 3]]
assert lists.combinations() as Set ==
[['a', 1], ['a', 2], ['a', 3],
['b', 1], ['b', 2], ['b', 3]] as Set