CODEWITHSUNDEEP
ruby-on-railsrubyhash
user12763413
user12763413

Reputation: 1347

add hash to hashes in ruby

final_sub_hash = {}

<% workers.each do |work| %>
  <% sub_hash = {} %>
  <% sub_hash = {:name => work['name'], :gender => work['gender']} %>        
  <% final_sub_hash.update(sub_hash) %>
<% end %>

What I am trying to do is append the values of sub_hash to final_sub_hash but I am not able to figure out how can I do that. Please help me find a solution.

Upvotes: 0

Views: 857

Answers (2)

stevec
stevec

Reputation: 52268

I arrived here from a search for how to add a hash to a hash. In case anyone else wonders the same, here's a nice example

# Create a hash
h = {a: 1, b: 2}
# => {:a=>1, :b=>2}

# Add a hash to the existing hash
h.store(:c, {i: 10, ii: 20})
# > {:a=>1, :b=>2, :c=>{:i=>10, :ii=>20}}

The new key can be a symbol (like :c, as above), but it could also be a string:

h.store("c", {i: 10, ii: 20})
# => {:a=>1, :b=>2, "c"=>{:i=>10, :ii=>20}}

Upvotes: 1

Ademario Jos&#233;
Ademario Jos&#233;

Reputation: 26

hash.store(key, value) stores a key-value pair in hash.

Example:

hash   #=> {"a"=>1, "b"=>2, "c"=>55}
hash["d"] =  30 #=> 30
hash   #=> {"a"=>1, "b"=>2, "c"=>55, "d"=>30}

What you are trying to do is a list.

Example:

works = []
work.append(hash) #=> [ {"a"=>1, "b"=>2, "c"=>55, "d"=>30} ]

Upvotes: 1

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