methodCombinators.coffee

# Do something before the method
before = (decorator) -> (method) -> ->
  decorator.apply this, arguments
  method.apply    this, arguments

# Do something after the method
after = (decorator) -> (method) -> ->
  method.apply    this, arguments
  decorator.apply this, arguments

# Decorate methods to support jQuery-like chaining
chainable = after -> this

class Context
  constructor: (@el) ->

  detach: chainable ->
    @el.remove()
    
  attach: chainable ->
    @el.appendTo(parent)

  render: chainable (models, directives, options) ->
    @el.render(models, directives, options)
    
#...

context
  .detach()
  .render(models, directives, options)
  .attach()