Function arraySplice

packages/core/src/util/array_utils.ts:87–96

(array: any[], index: number, count: number)

 * @param count Number of items to remove.
 */
export function arraySplice(array: any[], index: number, count: number): void {
  const length = array.length - count;
  while (index < length) {
    array[index] = array[index + count];
    index++;
  }
  while (count--) {
    array.pop(); // shrink the array
  }
}

/**
 * Same as `Array.splice(index, 0, value)` but faster.