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22 lines
716 B
Text
22 lines
716 B
Text
interface Dict
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exposes [ isEmpty, map ]
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imports []
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size : Dict * * -> Nat
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isEmpty : Dict * * -> Bool
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## Convert each key and value in the #Dict to something new, by calling a conversion
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## function on each of them. Then return a new #Map of the converted keys and values.
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##
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## >>> Dict.map {{ 3.14 => "pi", 1.0 => "one" }} \{ key, value } -> { key:
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##
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## >>> Dict.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 #Set.map.
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map :
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Dict beforeKey beforeValue,
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({ key: beforeKey, value: beforeValue } ->
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{ key: afterKey, value: afterValue }
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) -> Dict afterKey afterValue
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