core-js/internals/forced-object-prototype-accessors-methods.js

'use strict';
var IS_PURE = require('../internals/is-pure');
var global = require('../internals/global');
var fails = require('../internals/fails');

// Forced replacement object prototype accessors methods
module.exports = IS_PURE || !fails(function () {
  var key = Math.random();
  // In FF throws only define methods
  // eslint-disable-next-line no-undef, no-useless-call
  __defineSetter__.call(null, key, function () { /* empty */ });
  delete global[key];
});