data

tickets: [
  {name: "None", price: null}
  {name: "Economy", price: 199.95}
  {name: "Business", price: 449.22}
  {name: "First Class", price: 1199.99}
]
chosenTicket: Observable()
resetTicket: ->
  @chosenTicket(@tickets[0])

style

#preview
  font-family: helvetica
  padding: 0.5em

template

Choose a ticket class:
%select
  - on "change", @chosenTicket
  - each @tickets, ->
    %option= @name

%button Clear
  - on "click", @resetTicket

- with @chosenTicket, ->
  %p
    - if @price
      You have chosen
      %b= @name
      %span $#{@price}
    - else
      No ticket chosen