rx-player/src/utils/are_arrays_of_numbers_equal.ts

Canal+ HTML5 Video Player

/**
 * Copyright 2015 CANAL+ Group
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Check if two two arrays containing only numbers are equal.
 * @param {Array.<number>|TypedArray} arr1
 * @param {Array.<number>|TypedArray} arr2
 * @returns {Boolean}
 */
export default function areArraysOfNumbersEqual(
  arr1: Uint8Array | number[],
  arr2: Uint8Array | number[],
): boolean {
  if (arr1.length !== arr2.length) {
    return false;
  }
  if (arr1 === arr2) {
    return true;
  }
  for (let i = arr1.length - 1; i >= 0; i--) {
    if (arr1[i] !== arr2[i]) {
      return false;
    }
  }
  return true;
}