Ruby: How to find the key of the largest value in a hash?

Question

Hello I\'m trying to find the largest value in my hash. I made a search in google and I found this code:

def largest_hash_key(hash)
  key = hash.sort{|a,b|          


        

Answer 1

Sort the hash once instead of finding max. This way you can also get smallest etc.

def reverse_sort_hash_value(hash)
   hash = hash.sort_by {|k,v| v}.reverse
end

h = reverse_sort_hash_value(h)

Key of largest value

max = *h[0][0]

Get Key/Value of the smallest value

puts *h[h.length-1]

You can convert to hash using Hash[h.select { |k, v| v == max}] or using h.to_h