Function mapKeys

mapKeys<K1, K2>(mapper): (<V>(m) => Map<K2, V>)
Transforms the Map with replacing keys. If there duplicate keys on replaced, the last one will take precedence.
Type Parameters
- K1
- K2
Parameters
- mapper: ((key) => K2)
  Function to transform keys.
  - - (key): K2
    - Parameters
      key: K1
      Returns K2
Returns (<V>(m) => Map<K2, V>)
A new Map with new keys.
- - <V>(m): Map<K2, V>
  - Type Parameters
    - V
    Parameters
    - m: Map<K1, V>
    Returns Map<K2, V>
- Defined in src/map.ts:890

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