@ant-design/pro-utils/lib/nanoid/index.js

@ant-design/pro-utils

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.nanoid = void 0;
/* eslint-disable prefer-const */

var index = 0;
var genNanoid = function genNanoid() {
  var t = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 21;
  if (typeof window === 'undefined') return (index += 1).toFixed(0);
  if (!window.crypto) return (index += 1).toFixed(0);
  var e = '',
    r = crypto.getRandomValues(new Uint8Array(t));
  // eslint-disable-next-line no-param-reassign
  for (; t--;) {
    var n = 63 & r[t];
    e += n < 36 ? n.toString(36) : n < 62 ? (n - 26).toString(36).toUpperCase() : n < 63 ? '_' : '-';
  }
  return e;
};

/**
 * 生成uuid，如果不支持 randomUUID，就用 genNanoid
 *
 * @returns string
 */
var nanoid = exports.nanoid = function nanoid() {
  if (typeof window === 'undefined') return genNanoid();
  // @ts-ignore
  if (window.crypto && window.crypto.randomUUID && typeof crypto.randomUUID == 'function') {
    // @ts-ignore
    return crypto.randomUUID();
  }
  return genNanoid();
};