Function reverseForEach

src/cdk/dialog/dialog.ts:426–432

* Executes a callback against all elements in an array while iterating in reverse. * Useful if the array is being modified as it is being iterated.

(items: T[] | readonly T[], callback: (current: T) => void)

 * Useful if the array is being modified as it is being iterated.
 */
function reverseForEach<T>(items: T[] | readonly T[], callback: (current: T) => void) {
  let i = items.length;

  while (i--) {
    callback(items[i]);
  }
}