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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@bitgo/sdk-coin-hbar/node_modules/@hashgraph/sdk/lib

Просмотр файла: array.cjs

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.arrayEqual = arrayEqual;
exports.arrayStartsWith = arrayStartsWith;
/*-
 * ‌
 * Hedera JavaScript SDK
 * ​
 * Copyright (C) 2020 - 2022 Hedera Hashgraph, LLC
 * ​
 * 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.
 * ‍
 */

/**
 * A simple efficient function for comparing byte arrays
 *
 * @param {Uint8Array} array1
 * @param {Uint8Array} array2
 * @returns {boolean}
 */
function arrayEqual(array1, array2) {
  if (array1 === array2) {
    return true;
  }
  if (array1.byteLength !== array2.byteLength) {
    return false;
  }
  const view1 = new DataView(array1.buffer, array1.byteOffset, array1.byteLength);
  const view2 = new DataView(array2.buffer, array2.byteOffset, array2.byteLength);
  let i = array1.byteLength;
  while (i--) {
    if (view1.getUint8(i) !== view2.getUint8(i)) {
      return false;
    }
  }
  return true;
}

/**
 * @param {Uint8Array} array
 * @param {Uint8Array} arrayPrefix
 * @returns {boolean}
 */
function arrayStartsWith(array, arrayPrefix) {
  if (array.byteLength < arrayPrefix.byteLength) {
    return false;
  }
  let i = arrayPrefix.byteLength;
  while (i--) {
    if (array[i] !== arrayPrefix[i]) {
      return false;
    }
  }
  return true;
}

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