'use strict';
/* eslint-disable es/no-object-getownpropertynames -- safe */
var classof = require('../internals/classof-raw');
var toIndexedObject = require('../internals/to-indexed-object');
var $getOwnPropertyNames = require('../internals/object-get-own-property-names').f;
var arraySlice = require('../internals/array-slice');

var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return $getOwnPropertyNames(it);
  } catch (error) {
    return arraySlice(windowNames);
  }
};

// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
module.exports.f = function getOwnPropertyNames(it) {
  return windowNames && classof(it) === 'Window'
    ? getWindowNames(it)
    : $getOwnPropertyNames(toIndexedObject(it));
};