We took zip codes from a CSV file. We checked to see if the zip code was nil or less than five digits. If so, we fixed the zip code by adding 0s or putting "no zip code."

event_attendees.csv

event_manager.rb

require 'csv'

def fix_zipcode(zipcode)
	if zipcode.nil?
		zipcode = "No zipcode"
	elsif zipcode.length < 5
		zipcode = zipcode.rjust(5, "0")
	end
	puts zipcode
end

puts "EventManager Initialized!"
contents = CSV.open("event_attendees.csv", headers: true, header_converters: :symbol)
contents.each do |row|
	zipcode = row[:zipcode]
	fix_zipcode(zipcode)
end