Function dedupArrayBy

Deduplicate the values in an array using a specified key function. Preserves order.

Example

const animals = [
  { id: 1, animal: 'whale' },
  { id: 1, animal: 'gorilla' },
  { id: 2, animal: 'ant' },
]
dedupArrayBy(animals, animal => animal.id) === [
  { id: 1, animal: 'whale' },
  { id: 2, animal: 'ant' },
]