multi_hash_iterator
Iterate through multiple hashmaps. Values from multiple hashmaps are presented
in an array. If a hash does not contain a value for that key, a nil
will be used. See Example.
Installation
gem install multi_hash_iterator
Example
require 'multi_hash_iterator'
h1 = { a: 1, c: 11 }
h2 = { a: 2, b: 2 }
h4 = { a: 3, c: 10 }
multi_hash(h1, h2, h3).each do |k, v|
# 1st iteration: k = a, v = [1, 2, 3]
# 2nd iteration: k = c, v = [11, nil, 10]
# 3rd iteration: k = b, v = [nil, 2, nil]
end
Or direct access
mh = MultiHash.new(h1, h2, h3)
mh[:c] # => [11, nil, 10]