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18 lines
539 B
Text
18 lines
539 B
Text
interface Set
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exposes [ Set, map, isEmpty ]
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imports []
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## Check
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# isEmpty : List * -> Bool
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## Convert each element in the list to something new, by calling a conversion
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## function on each of them. Then return a new list of the converted values.
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##
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## >>> Set.map {[ -1, 1, 3 ]} Num.negate
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##
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## >>> Set.map {[ "", "a", "bc" ]} Str.isEmpty
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##
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## `map` functions like this are common in Roc, and they all work similarly.
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## See for example #Result.map, #List.map, and #Map.map.
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map : List before, (before -> after) -> List after
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