Class: Hashify

Inherits:
Object
  • Object
show all
Defined in:
lib/primus.rb

Overview

Takes a hash and returns string of reverse order odd keys

Class Method Summary collapse

Class Method Details

.call(hash) ⇒ Object 



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# File 'lib/primus.rb', line 7

def self.call(hash)
  raise 'This hash is empty' if hash.empty?
  array = hash.each_with_index.map { |(key), index| key.upcase if index.odd? }.compact
  array.sort.reverse.join('')
end