ruby sort code example
Example 1: ruby sort array numerically
a.sort_by(&:to_i)
Example 2: ruby sort method
numbers = [5,3,2,1]
numbers.sort
# [1,2,3,5]
Example 3: returning objects in alphabetical order in ruby
[p1, p2, p3, p4].sort_by { |p| [p.fname, p.lname] }