Ruby challenge

devv_controller.rb

class DevvController < ApplicationController 

  def options 
    options = {} 
    
    available_option_keys = [:awesome, :ruby, :developer] 
    
    all_keys = params.keys.map(&:to_sym) 
    
    #this is wrong, we can not concatenate arrays with '&' operator, we should use '&&' or '+' operator
    set_option_keys = all_keys & available_option_keys 
    
    set_option_keys.each do |key| 
      options[key] = params[key] 
    end 
    
    #options hash contains elements with nil value, so we should remove those elements
    options.delete_if{|k, v| v.nil?}
  end

end