A JS function that returns a copy of the input Array in reversed order

fastReverse.ts

/**
 * Returns a reversed copy of the given Array
 */
export function fastReverse<T>(arr: T[]): T[] {
  const result = new Array<T>(arr.length);
  for (let i = 0; i < arr.length; i++) {
    result[i] = arr[arr.length - 1 - i];
  }
  return result;
};