Function uniq

packages/effect-app/src/Chunk.ts:42–53

(E: Equivalence<A>)

 * Remove duplicates from an array, keeping the first occurrence of an element.
 */
export function uniq<A>(E: Equivalence<A>) {
  return (self: Chunk.Chunk<A>): Chunk.Chunk<A> => {
    let out = Chunk.fromIterable([] as A[])
    for (let i = 0; i < self.length; i++) {
      const a = Chunk.getUnsafe(self, i)
      if (!elem(E, a)(out)) {
        out = Chunk.append(out, a)
      }
    }
    return self.length === out.length ? self : out
  }
}

/**
 * Test if a value is a member of an array. Takes a `Equivalence<A>` as a single