64 lines
938 B
CoffeeScript
64 lines
938 B
CoffeeScript
area = (x, y, x1, y1) ->
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(x - x1) * (x - y1)
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x = y = 10
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x1 = y1 = 20
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ok area(x, y, x1, y1) is 100
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# ok(area(x, y,
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# x1, y1) is 100)
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ok(area(
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x
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y
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x1
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y1
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) is 100)
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sumOfArgs = ->
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sum = 0
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sum += val for val in arguments
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sum
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ok sumOfArgs(1, 2, 3, 4, 5) is 15
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((@arg) ->).call context = {}, 1
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ok context.arg is 1
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((splat..., @arg) ->).call context, 1, 2, 3
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eq context.arg, 3
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((@arg...) ->).call context, 1, 2, 3
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eq context.arg.join(' '), '1 2 3'
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class Klass
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constructor: (@one, @two) ->
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obj = new Klass 1, 2
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eq obj.one, 1
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eq obj.two, 2
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# Destructuring.
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(([{a: [b], c}]...) ->
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eq b, 123
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eq c, 456
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) {a: [123], c: 456}
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# Default values.
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obj = f: (q = 123, @p = 456) -> q
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eq obj.f(), 123
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eq obj.p , 456
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withSplats = (a = 2, b..., c = 3, d = 5) -> a * (b.length + 1) * c * d
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eq 30, withSplats()
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eq 15, withSplats 1
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eq 5, withSplats 1, 1
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eq 1, withSplats 1, 1, 1
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eq 2, withSplats 1, 1, 1, 1
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