mirror of
https://github.com/jashkenas/coffeescript.git
synced 2022-11-09 12:23:24 -05:00
266 lines
4 KiB
CoffeeScript
266 lines
4 KiB
CoffeeScript
a = [((x) -> x), ((x) -> x * x)]
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ok a.length is 2
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neg = (3 -4)
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ok neg is -1
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# Decimal number literals.
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value = .25 + .75
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ok value is 1
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value = 0.0 + -.25 - -.75 + 0.0
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ok value is 0.5
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# Can call methods directly on numbers.
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4.valueOf() is 4
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func = ->
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return if true
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ok func() is undefined
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trailingComma = [1, 2, 3,]
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ok (trailingComma[0] is 1) and (trailingComma[2] is 3) and (trailingComma.length is 3)
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trailingComma = [
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1, 2, 3,
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4, 5, 6
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7, 8, 9,
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]
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(sum = (sum or 0) + n) for n in trailingComma
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trailingComma = {k1: "v1", k2: 4, k3: (-> true),}
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ok trailingComma.k3() and (trailingComma.k2 is 4) and (trailingComma.k1 is "v1")
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ok {a: (num) -> num is 10 }.a 10
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moe = {
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name: 'Moe'
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greet: (salutation) ->
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salutation + " " + @name
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hello: ->
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@['greet'] "Hello"
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10: 'number'
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}
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ok moe.hello() is "Hello Moe"
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ok moe[10] is 'number'
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moe.hello = ->
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this['greet'] "Hello"
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ok moe.hello() is 'Hello Moe'
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obj = {
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is: -> yes,
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'not': -> no,
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}
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ok obj.is()
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ok not obj.not()
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# Top-level object literal doesn't break things.
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obj: 1
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# Funky indentation within non-comma-seperated arrays.
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result = [['a']
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{b: 'c'}]
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ok result[0][0] is 'a'
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ok result[1]['b'] is 'c'
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# Object literals should be able to include keywords.
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obj = {class: 'höt'}
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obj.function = 'dog'
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ok obj.class + obj.function is 'hötdog'
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# But keyword assignment should be smart enough not to stringify variables.
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func = ->
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this == 'this'
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ok func() is false
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# New fancy implicit objects:
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config =
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development:
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server: 'localhost'
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timeout: 10
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production:
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server: 'dreamboat'
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timeout: 1000
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ok config.development.server is 'localhost'
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ok config.production.server is 'dreamboat'
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ok config.development.timeout is 10
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ok config.production.timeout is 1000
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obj =
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a: 1
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b: 2
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ok obj.a is 1
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ok obj.b is 2
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obj =
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a: 1,
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b: 2,
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ok obj.a is 1
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ok obj.b is 2
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# Implicit objects nesting.
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obj =
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options:
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value: yes
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fn: ->
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{}
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null
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ok obj.options.value is yes
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ok obj.fn() is null
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# Implicit arguments to function calls:
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func = (obj) -> obj.a
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result = func
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a: 10
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ok result is 10
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result = func
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"a": 20
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ok result is 20
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third = (a, b, c) -> c
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obj =
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one: 'one'
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two: third 'one', 'two', 'three'
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ok obj.one is 'one'
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ok obj.two is 'three'
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# Implicit objects with wacky indentation:
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obj =
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'reverse': (obj) ->
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Array.prototype.reverse.call obj
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abc: ->
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@reverse(
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@reverse @reverse ['a', 'b', 'c'].reverse()
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)
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one: [1, 2,
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a: 'b'
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3, 4]
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red:
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orange:
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yellow:
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green: 'blue'
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indigo: 'violet'
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misdent: [[],
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[],
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[],
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[]]
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ok obj.abc().join(' ') is 'a b c'
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ok obj.one.length is 5
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ok obj.one[4] is 4
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ok obj.one[2].a is 'b'
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ok (key for key of obj.red).length is 2
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ok obj.red.orange.yellow.green is 'blue'
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ok obj.red.indigo is 'violet'
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ok obj.misdent.toString() is ',,,'
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second = (x, y) -> y
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obj = then second 'the',
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1: 1
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two:
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three: ->
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four five,
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six: seven
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three: 3
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ok obj[1] is 1
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ok obj.three is 3
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# Implicit objects as part of chained calls.
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pluck = (x) -> x.a
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eq 100, pluck pluck pluck a: a: a: 100
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eq '\\`', `
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// Inline JS
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"\\\`"
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`
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# Shorthand objects with property references.
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obj =
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one: 1
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two: 2
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object: -> {@one, @two}
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list: -> [@one, @two]
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result = obj.object()
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eq result.one, 1
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eq result.two, 2
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eq result.two, obj.list()[1]
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# Dynamic object keys.
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i = 0
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obj = {
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### leading comment ###
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(4 * 2): 8
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### cached shorthand ###
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(++i)
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### normal keys ###
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key: ok
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's': ok
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0.0: ok
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"#{'interpolated'}":
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"""#{"nested"}""": 123: 456
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### traling comment ###
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}
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eq obj.interpolated.nested[123], 456
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eq obj[8], 8
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eq obj[1], 1
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ok obj.key is obj.s is obj[0]
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eq 'braceless dynamic key',
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(key for key of """braceless #{ 0 of ((0):(0)) and 'dynamic' } key""": 0)[0]
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obj.key = 'val'
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obj.val = ok
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{(obj.key)} = obj
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eq ok, obj.key
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#542: Objects leading expression statement should be parenthesized.
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{f: -> ok yes }.f() + 1
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#764: Boolean/Number should be indexable.
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ok 42['toString']
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ok on['toString']
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