Rails iterate multiple hash

Question

I have the following hash :

{
  "2017-01-01" => {
    "2"=> [
      {:a=>"2017-01-01", :b=>"2", :c=>"1"},
      {:a=>"2017-01-01", :b=>"2", :c=>"2"}
    ]
  },
  "2017-01-02" => {
    "5"=> [
      {:a=>"2017-01-02", :b=>"5", :c=>"1"}
    ]
  }
}

I would iterate separately

1)first iteration

{
 {:a=>"2017-01-01", :b=>"2", :c=>"1"},
 {:a=>"2017-01-01", :b=>"2", :c=>"2"}
}

2) second iteration

{
 {:a=>"2017-01-02", :b=>"5", :c=>"1"}
}

How can I do? Thanks in advance.

Ok, and what have you tried so far to solve this? Stackoverflow is not a code-writing service. — Eyeslandic, Feb 10 '17 at 12:06
I have trouble understanding the iteration operation of multiple hash — sirion1987, Feb 10 '17 at 12:11

score 1 · Accepted Answer · edited May 23 '17 at 12:31

1

answer for your question is in How to iterate over a hash in Ruby? check it.

hash.each do |key, array|
  puts array
end

if 'array' again is a hash, then you need to loop it as follows

hash.each do |key, hash2|
  hash2.each do |key2,array|
    puts array
  end 
end

edited May 23 '17 at 12:31

Community

1
1

answered Feb 10 '17 at 12:19

jithya

428
4
13

If I want print only the key ":a" ? – sirion1987 Feb 10 '17 at 12:44
@DomenicoGarofoli you may need to loop array as array.each{|elem| puts elem[0]} – jithya Feb 10 '17 at 12:52

Rails iterate multiple hash

1 Answers1