Removing an index from an array.

removeIndexFromArray.js

/**
 * Remove an index from an array.
 * This creates a new array without the index we're removing.
 * Because of that, indexes are re-created so there isn't any empty spot.
 *
 */
export function removeIndexFrom(array, indexToRemove) {
  return [
    ...array.slice(0, indexToRemove),
    ...array.slice(indexToRemove + 1),
  ];
}