Function arraySwap

packages/helpers/src/move.ts:30–46

(
  array: T,
  from: number,
  to: number
)

 * Swap two array items with each other. Returns a new array with the two items at `from` and `to` exchanged in place.
 */
export function arraySwap<T extends any[]>(
  array: T,
  from: number,
  to: number
): T {
  if (from === to) {
    return array;
  }

  const newArray = array.slice() as T;
  const item = newArray[from];

  newArray[from] = newArray[to];
  newArray[to] = item;

  return newArray;
}

type Items = UniqueIdentifier[] | {id: UniqueIdentifier}[];