SummaryWithPromises.coffee

# Using a Promise
loadCompanies: ->
  @companyService.loadCompanies().then(
    success: ( records ) ->
      # Do something with results
    failure: ( error ) ->
      # Do something with the error
  ).always( ->
    # Do something whether the call succeeded or failed
  )

# Using a Promise for a chain of async calls
loadInitialData: ->
  @companyService.loadInitialData().then(
    success: ( records ) ->
      # Do something with results
    failure: ( error ) ->
      # Do something with the error
  ).always( ->
    # Do something whether the call succeeded or failed
  )