57 lines
1.2 KiB
JavaScript
57 lines
1.2 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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// MAIN //
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/**
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* Returns an array of an object's own and inherited enumerable property names.
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*
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* @param {ObjectLike} obj - input object
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* @returns {Array} key array
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*
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* @example
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* function Foo() {
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* this.beep = 'boop';
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* return this;
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* }
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*
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* Foo.prototype.foo = 'bar';
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*
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* var obj = new Foo();
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*
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* var keys = keysIn( obj );
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* // e.g., returns [ 'beep', 'foo' ]
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*/
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function keysIn( obj ) {
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var out;
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var key;
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out = [];
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for ( key in obj ) { // eslint-disable-line guard-for-in
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out.push( key );
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}
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return out;
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}
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// EXPORTS //
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module.exports = keysIn;
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