Function mapOptionWithKey

mapOptionWithKey<K, V, W>(mapper): ((m) => Map<K, W>)
Transforms the Map with lossy conversion mapper.
Type Parameters
- K
- V
- W
Parameters
- mapper: ((key) => ((value) => Option<W>))
  Function to transform into W, but optional. If it returned None, the value will be dropped. Also the key will be passed to.
  - - (key): ((value) => Option<W>)
    - Parameters
      key: K
      Returns ((value) => Option<W>)
      (value): Option<W>
      Parameters
      value: V
      Returns Option<W>
Returns ((m) => Map<K, W>)
A new transformed Map.
- - (m): Map<K, W>
  - Parameters
    - m: Map<K, V>
    Returns Map<K, W>
- Defined in src/map.ts:1162

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