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Map is a key-value data structure commonly used for its efficiency, such as in hash maps. The MapKeys type is useful when you need to work with just the keys of a Map, allowing you to extract and use the key type independently from the value type.
It provides support for
MapKeys
.Map
is a key-value data structure commonly used for its efficiency, such as in hash maps. TheMapKeys
type is useful when you need to work with just the keys of aMap
, allowing you to extract and use the key type independently from the value type.Here is a detailed implementation. playground
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