date_select Ruby vs. CoffeeScript

date_select.js.coffee

  months = [null,'January','February','March','April','May','June','July','August','September','October','November','December']
  mops = dops = yops = ''
  for n in [1..12]
    mops += "<option value='#{n}'>#{months[n]}</option>"
  for n in [1..31]
    dops += "<option value='#{n}'>#{n}</option>"
  y = (new Date()).get('Year')
  for n in [(y-80)..y]
    yops += "<option value='#{n}'>#{n}</option>"
  "<select name='born_on_month'>#{mops}</select>" +
  "<select name='born_on_day'>#{dops}</select>" +
  "<select name='born_on_year'>#{yops}</select>"

date_select.rb

%select(name="born_on_month")
  - (1..12).each do |number|
    %option(value=number)= Date::MONTHNAMES[number]
%select(name="born_on_day")
  - (1..31).each do |number|
    %option(value=number)= number
%select(name="born_on_year")
  - y = Date.today.year
  - ((y-80)..y).each do |number|
    %option(value=number)= number