Iterate over a deeply nested level of hashes in Ruby

Question

So I have a hash, and for each level of the hash, I want to store its key and value. The problem is, a value can be another hash array. Furthermore, that hash can contain ke

Answer 1

class Hash
  def each_with_parent(parent=nil, &blk)
    each do |k, v|
      Hash === v ? v.each_with_parent(k, &blk) : blk.call([parent, k, v])
    end
  end
end

h = { :a => 1, :b => { :c => 3, :d => 4, :e => { :f => 5 } } }

h.each_with_parent { |i| p i }
# [nil, :a, 1]
# [:b, :c, 3]
# [:b, :d, 4]
# [:e, :f, 5]

Answer 2

Have you tried something like that?

trios = []

def save_trio(hash, parent = nil)
  hash.each do |key, value|
    value.kind_of?(Hash) ? save_trio(value, key) : trios << {:key => key, :value => value, :parent => parent}
  end
end

save_trio(myHash)