126 lines
2.2 KiB
CoffeeScript
126 lines
2.2 KiB
CoffeeScript
func = (first, second, rest...) ->
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rest.join ' '
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result = func 1, 2, 3, 4, 5
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ok result is "3 4 5"
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gold = silver = bronze = theField = last = null
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medalists = (first, second, third, rest..., unlucky) ->
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gold = first
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silver = second
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bronze = third
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theField = rest.concat([last])
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last = unlucky
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contenders = [
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"Michael Phelps"
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"Liu Xiang"
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"Yao Ming"
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"Allyson Felix"
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"Shawn Johnson"
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"Roman Sebrle"
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"Guo Jingjing"
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"Tyson Gay"
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"Asafa Powell"
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"Usain Bolt"
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]
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medalists "Mighty Mouse", contenders...
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ok gold is "Mighty Mouse"
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ok silver is "Michael Phelps"
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ok bronze is "Liu Xiang"
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ok last is "Usain Bolt"
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ok theField.length is 8
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contenders.reverse()
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medalists contenders.slice(0, 2)..., "Mighty Mouse", contenders.slice(2)...
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ok gold is "Usain Bolt"
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ok silver is "Asafa Powell"
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ok bronze is "Mighty Mouse"
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ok last is "Michael Phelps"
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ok theField.length is 8
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medalists contenders..., 'Tim', 'Moe', 'Jim'
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ok last is 'Jim'
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obj =
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name: 'moe'
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accessor: (args...) ->
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[@name].concat(args).join(' ')
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getNames: ->
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args = ['jane', 'ted']
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@accessor(args...)
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index: 0
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0: {method: -> this is obj[0]}
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ok obj.getNames() is 'moe jane ted'
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ok obj[obj.index++].method([]...), 'should cache base value'
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crowd = [
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contenders...
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"Mighty Mouse"
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]
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bests = [
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"Mighty Mouse"
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contenders.slice(0, 4)...
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]
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ok crowd[0] is contenders[0]
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ok crowd[10] is "Mighty Mouse"
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ok bests[1] is contenders[0]
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ok bests[4] is contenders[3]
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# Finally, splats with super() within classes.
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class Parent
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meth: (args...) ->
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args
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class Child extends Parent
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meth: ->
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nums = [3, 2, 1]
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super nums...
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ok (new Child).meth().join(' ') is '3 2 1'
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# Functions with splats being called with too few arguments.
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pen = null
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method = (first, variable..., penultimate, ultimate) ->
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pen = penultimate
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method 1, 2, 3, 4, 5, 6, 7, 8, 9
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ok pen is 8
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method 1, 2, 3
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ok pen is 2
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method 1, 2
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ok pen is 2
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# Array splat expansions with assigns.
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nums = [1, 2, 3]
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list = [a = 0, nums..., b = 4]
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ok a is 0
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ok b is 4
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ok list.join(' ') is '0 1 2 3 4'
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# Splat on a line by itself is invalid.
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failed = true
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try
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CoffeeScript.compile "x 'a'\n...\n"
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failed = false
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catch err
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ok failed
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