Function format number Ruby

number.rb

#number.rb
puts 'Informe um número'
 
number = gets.chomp
 
def format_number(number)
 
    for num in 0..number.to_i
        puts num.to_s.reverse.gsub(/(\d{3})(?=\d)/, '\\1,').reverse
    end
               
end
 
format_number(number)
 
def format_with_separator(number)
        whole_part, decimal_part = number.to_s.split('.')
        [whole_part.gsub(/(\d)(?=\d{3}+$)/, '\1,'), decimal_part].compact.join('.')
end
 
puts '--------'
puts format_with_separator(number)
 
puts '--------'
puts sprintf("%0.2f", number).gsub(/(\d)(?=\d{3}+\.)/, '\1,')
 
puts '--------'
puts sprintf("%d", number).gsub(/(\d)(?=\d{3}+$)/, '\1,')
 
puts '--------'
puts number.gsub(/[^\d\.]/, '')
 
#Use in terminal
#ruby number.rb