mirror of
https://github.com/jashkenas/coffeescript.git
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77 lines
1.1 KiB
CoffeeScript
77 lines
1.1 KiB
CoffeeScript
# Chaining
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# --------
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# shared identity function
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id = (_) -> if arguments.length is 1 then _ else Array::slice.call(arguments)
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# Basic chained function calls.
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identityWrap = (x) ->
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-> x
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result = identityWrap(identityWrap(true))()()
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ok result
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# Should be able to look at prototypes on keywords.
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obj =
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withAt: -> @::prop
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withThis: -> this::prop
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proto:
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prop: 100
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obj.prototype = obj.proto
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eq obj.withAt() , 100
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eq obj.withThis(), 100
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# Chained accesses split on period/newline, backwards and forwards.
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str = 'god'
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result = str.
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split('').
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reverse().
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reverse().
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reverse()
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ok result.join('') is 'dog'
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result = str
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.split('')
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.reverse()
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.reverse()
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.reverse()
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ok result.join('') is 'dog'
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# Newline suppression for operators.
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six =
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1 +
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2 +
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3
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ok six is 6
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# Ensure that indented array literals don't trigger whitespace rewriting.
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func = () ->
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ok arguments.length is 1
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func(
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[[[[[],
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[]],
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[[]]]],
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[]])
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greeting = id(
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"""
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Hello
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""")
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ok greeting is "Hello"
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ok not Date
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::
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?.foo, '`?.` and `::` should also continue lines'
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