Sort hash simply and functionally

hash_sort_functionally.rb

db = { 7 => ["parikh", "shah"], 5 => ["sinha", "kaur"], 3 => ["sharma", "khan"]}

def sort_functional(db)
  db.keys.sort.reduce({}) { |hash,item| hash.merge( item => db[item].sort ) }
end

def sort_simple(db)
  sorted = {}
  db.keys.sort.each do |n|
    sorted[n]=db[n].sort
  end
  sorted  
end  

 

print sort_simple db
print "\n"
print sort_functional db