coffeescript/test/test_arguments.coffee

Unfancy JavaScript

area = (x, y, x1, y1) ->
  (x - x1) * (x - y1)

x  = y  = 10
x1 = y1 = 20

ok area(x, y, x1, y1) is 100

ok(area(x, y,
           x1, y1) is 100)

ok(area(
  x
  y
  x1
  y1
) is 100)


sumOfArgs = ->
  sum = 0
  sum += val for val in arguments
  sum

ok sumOfArgs(1, 2, 3, 4, 5) is 15


((@arg) ->).call context = {}, 1
ok context.arg is 1

((splat..., @arg) ->).call context, 1, 2, 3
ok context.arg is 3

((@arg...) ->).call context, 1, 2, 3
ok context.arg.join ' ' is '1 2 3'

class Klass
  constructor: (@one, @two) ->

obj = new Klass 1, 2

ok obj.one is 1
ok obj.two is 2