How to sort a hash by value in descending order and output a hash in ruby?

Question

output.sort_by {|k, v| v}.reverse

and for keys

h = {\"a\"=>1, \"c\"=>3, \"b\"=>2, \"d\"=>4}
=> {\"a\"=>1, \"c\"=>3         


        

Answer 1

Try this:

Hash[h.sort_by{ |_, v| -v }]

Answer 2

Try:

Hash[h.sort.reverse]

This should return what you want.

Edit:

To do it by value:

Hash[h.sort_by{|k, v| v}.reverse]