That works for Array as well as Hash [1, 2].shallow_merge({1 => 3, 2 => 4}) == [1, 3, 4] [1, 2].shallow_merge([nil, 3, 4]) == [1, 3, 4] // If we didn't ignore nil, merge would just be assignment
That works for Array as well as Hash
[1, 2].shallow_merge({1 => 3, 2 => 4}) == [1, 3, 4]
[1, 2].shallow_merge([nil, 3, 4]) == [1, 3, 4] // If we didn't ignore nil, merge would just be assignment