64 lines
1.4 KiB
JavaScript
64 lines
1.4 KiB
JavaScript
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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2018 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var hasArgumentsBug = require( './has_arguments_bug.js' );
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var HAS_BUILTIN = require( './has_builtin.js' );
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var builtin = require( './builtin.js' );
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var wrapper = require( './builtin_wrapper.js' );
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var polyfill = require( './polyfill.js' );
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// MAIN //
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/**
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* Returns an array of an object's own enumerable property names.
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*
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* @name keys
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* @type {Function}
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* @param {*} value - input object
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* @returns {Array} a list of own enumerable property names
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*
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* @example
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* var obj = {
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* 'beep': 'boop',
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* 'foo': 3.14
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* };
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*
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* var k = keys( obj );
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* // e.g., returns [ 'beep', 'foo' ]
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*/
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var keys;
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if ( HAS_BUILTIN ) {
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if ( hasArgumentsBug() ) {
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keys = wrapper;
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} else {
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keys = builtin;
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}
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} else {
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keys = polyfill;
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}
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// EXPORTS //
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module.exports = keys;
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