How to sort an array of hashes in ruby

Question

I have an array, each of whose elements is a hash with three key/value pairs:

:phone => \"2130001111\", :zip => \"12345\", :city => \"sometown\"
         


        

Answer 1

Simples:

array_of_hashes.sort_by { |hsh| hsh[:zip] }

Note:

When using sort_by you need to assign the result to a new variable: array_of_hashes = array_of_hashes.sort_by{} otherwise you can use the "bang" method to modify in place: array_of_hashes.sort_by!{}