#bored.step.slide(data-x='-1000', data-y='-1500')
        q
          | Aren't you just
          b bored
          | with all those slides-based presentations?

      .step.slide(data-x='0', data-y='-1500')
        q
          | Don't you think that presentations given strong in modern browsers
          | shouldn't strong copy the limits
          | of 'classic' slide decks?

      .step.slide(data-x='1000', data-y='-1500')
        q
          | Would you like to strong impress your audience
          | with strong stunning visualization
          | of your talk?

      #title.step(data-x='0', data-y='0', data-scale='4')
        span.try then you should try
        h1
          | impress.js
          sup *
        span.footnote
          sup *
          | no rhyme intended

      #its.step(data-x='850', data-y='3000', data-rotate='90', data-scale='5')
        p
          | It's a
          strong presentation tool
          br
          | inspired by the idea behind
          a(href='http://prezi.com') prezi.com
          br
          | and based on the
          strong power of CSS3 transforms and transitions
          | in modern browsers.

      #big.step(data-x='3500', data-y='2100', data-rotate='180', data-scale='6')
        p
          | visualize your
          b big
          span.thoughts thoughts

      #tiny.step(data-x='2825', data-y='2325', data-z='-3000', data-rotate='300', data-scale='1')
        p
          | and
          b tiny
          | ideas

class Responder
 constructor: (@name) ->
 response: (input) -> input + 'ってなに？'

class Unmo
 constructor: (@name) ->
   @responder = new Responder('what')
   @responder_name = @responder.name
 dialogue: (input) -> @responder.response(input)

u = new Unmo('proto')
console.log(u.dialogue('マックロシーベルト'))

$ coffee test.coffee 
マックロシーベルトってなに？

vows = require 'vows'
assert = require 'assert'

vows
  .describe('Division by zero')
  .addBatch
    'when dividing a number by zero':
      topic: -> 42/ 0

      'we get Infinity': (topic) ->
        assert.equal topic, Infinity

    'but when dividing zero by zero':
      topic: -> 0 / 0

      'we get a value which':
        'is not a number': (topic) ->
          assert.isNaN topic

        'is not equal to itself': (topic) -> 
          assert.notEqual topic, topic

  .export(module)

$ npm install -g js2coffee
$ express testapp
$ cd testapp
$  js2coffee app.js

app = module.exports = express.createServer()
app.configure ->
  app.set "views", __dirname + "/views"
  app.set "view engine", "jade"
  app.use express.bodyParser()
  app.use express.methodOverride()
  app.use app.router
  app.use express.static(__dirname + "/public")

app.configure "development", ->
  app.use express.errorHandler(
    dumpExceptions: true
    showStack: true
  )

app.configure "production", ->
  app.use express.errorHandler()

app.get "/", routes.index
app.listen 3000
console.log "Express server listening on port %d in %s mode", app.address().port, app.settings.env

$ cake
$ cake test