25 lines
495 B
Ruby
25 lines
495 B
Ruby
|
class Array
|
||
|
|
def groups_of(max_size)
|
||
|
|
return [] if max_size < 1
|
||
|
|
|
||
|
|
groups = []
|
||
|
|
group = []
|
||
|
|
self.each do |item|
|
||
|
|
group.push(item)
|
||
|
|
|
||
|
|
if group.size >= max_size
|
||
|
|
groups.push(group)
|
||
|
|
group = []
|
||
|
|
end
|
||
|
|
end
|
||
|
|
groups.push(group) unless group.size.zero?
|
||
|
|
groups
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
def todo_make_this_a_rspec_test()
|
||
|
|
p (1..10).to_a.groups_of(2) == [[1, 2], [3, 4], [5, 6], [7, 8], [9, 10]]
|
||
|
|
p (1..10).to_a.groups_of(20) == [[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]]
|
||
|
|
end
|
||
|
|
|