Function filterUniqueByField

filterUniqueByField<Elm, F>(arr, fieldGetter): Elm[]
Return an array of Elm, that is a subset of arr, and all the elements are pair-wise distinct by their values given by fieldGetter.
Type Parameters
- Elm
  the element type.
- F
  the field type, or value type of Elm for comparison. Note that the type should be identity-comparable, because this implementation uses Javascript's Set.
Parameters
- arr: Iterable<Elm>
  the array to filter.
- fieldGetter: ((elm) => F)
  the getter for the field, but can be arbitrary a transformer.
  - - (elm): F
    - Parameters
      elm: Elm
      Returns F
Returns Elm[]
the filtered array.
- Defined in src/common/helper.ts:169

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