node_modules/core-js-pure/internals/global.js

var O = 'object';
var check = function (it) {
  return it && it.Math == Math && it;
};

// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
module.exports =
  // eslint-disable-next-line no-undef
  check(typeof globalThis == O && globalThis) ||
  check(typeof window == O && window) ||
  check(typeof self == O && self) ||
  check(typeof global == O && global) ||
  // eslint-disable-next-line no-new-func
  Function('return this')();