Nkemjiks

require "HTTParty"
require 'nokogiri'

module Instructions
  def introductions
    puts 'Welcome to dev.to webscraper. This CLi tool gathered articles based on the hashtag provided'
    puts 'If you want to quit, simple type (q) the next time you are prompted to enter a value'
    puts 'Please provide a hashtag to continue..'
    puts ''
  end

Nkemjiks

def  first_non_repeating_letter(s) 
  return '' if s.strip == ''
  non_rep_l = s.chars.uniq { |s| [s.downcase, s.upcase] }.select { |ss| s.downcase.count(ss.downcase) == 1 }.first
  non_rep_l.nil? ? '' : non_rep_l
end