@carbon/ibm-products/lib/global/js/utils/uuidv4.js

Carbon for IBM Products

/**
 * Copyright IBM Corp. 2020, 2025
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

// https://stackoverflow.com/a/2117523

function uuidv4() {
  let prefix = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
  const randomValues = c => typeof crypto !== 'undefined' ? crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4 : Math.random() * 16 >> c / 4;
  return `${prefix}${([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c => (c ^ randomValues(c)).toString(16))}`;
}

exports.default = uuidv4;