fork(6) download 
  1. def f h
  2.   Hash[h.map {|k,v| v.class == Array ? [k, v.map{|r| f r}.to_a] : [k.downcase, v]}]
  3. end
  4.  
  5. p f({
  6.   "MemberId"=>"ABC0001", 
  7.   "MemberName"=>"Alan", 
  8.   "details"=>[
  9.     {"LineNumber"=>"4.1", "Item"=>"A0001", "Description"=>"Apple"}, 
  10.     {"LineNumber"=>"5.1", "Item"=>"A0002"}, 
  11.     {"LineNumber"=>"6.1", "Item"=>"Orange"}
  12.   ]
  13. })
Success #stdin #stdout 0.01s 7460KB
comments (?)
stdin 
Standard input is empty
stdout 
{"memberid"=>"ABC0001", "membername"=>"Alan", "details"=>[{"linenumber"=>"4.1", "item"=>"A0001", "description"=>"Apple"}, {"linenumber"=>"5.1", "item"=>"A0002"}, {"linenumber"=>"6.1", "item"=>"Orange"}]}
https://ideone.com/GRIsN4
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
public

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