Method chaining with function arguments

Question

What\'s the best way to chain methods in CoffeeScript? For example, if I have this JavaScript how could I write it in CoffeeScript?

var req = $.get(\'foo.htm\')
         


        

Answer 1

There are two approaches you can take: The best "literal" translation to CoffeeScript is (in my opinion)

req = $.get('foo.htm')
  .success((response) ->
    # do something
  )
  .error( ->
    # do something
  )

The other approach is to move the inline functions "outline," a style that Jeremy Ashkenas (the creator of CoffeeScript) generally favors for non-trivial function arguments:

onSuccess = (response) ->
  # doSomething

onError = ->
  # doSomething

req = $.get('foo.htm').success(onSuccess).error(onError)

The latter approach tends to be more readable when the success and error callbacks are several lines long; the former is great if they're just 1-2 liners.