var $ = require('../internals/export'); var toObject = require('../internals/to-object'); var nativeKeys = require('../internals/object-keys'); var fails = require('../internals/fails'); var FAILS_ON_PRIMITIVES = fails(function () { nativeKeys(1); }); // `Object.keys` method // https://tc39.es/ecma262/#sec-object.keys $({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES }, { keys: function keys(it) { return nativeKeys(toObject(it)); } });