node_modules/core-js/modules/$.get-names.js


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// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
var toIObject = require('./$.to-iobject')
  , getNames  = require('./$').getNames
  , toString  = {}.toString;

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

var getWindowNames = function(it){
  try {
    return getNames(it);
  } catch(e){
    return windowNames.slice();
  }
};

module.exports.get = function getOwnPropertyNames(it){
  if(windowNames && toString.call(it) == '[object Window]')return getWindowNames(it);
  return getNames(toIObject(it));
};