Question

I have a hash with some key value pairs as below:

@level2 = @l2.inject(Hash.new(0)) { |hash,element|
hash[element] +=1
hash }

I perform some sorting on the hash based on the keys.

@level2 = @level2.sort_by { |x, _| x }.reverse

Now I assume that the sort_by gives me an Array of Arrays. I want to split this into 2 arrays such that my first array should contain all keys and second array should contain all values.

The hash#keys and hash#values are not accessible after sorting the hash. So that does not work in this case.

Answer 1

Regardless of how you make the hash it will will have a Hash#keys method and a Hash#values. They both return arrays that are just what you seem to want.

keys_array   = @level2.keys
values_array = @level2.values