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* @license Apache-2.0
*
* Copyright (c) 2021 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
var isSymbol = require( '@stdlib/assert/is-symbol' ).isPrimitive;
var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
// MAIN //
/**
* Tests whether a value is a property key.
*
* ## Notes
*
* - A property key is either a string, symbol, or a nonnegative integer.
*
* @param {*} value - value to test
* @returns {boolean} boolean indicating whether value is a property key
*
* @example
* var bool = isPropertyKey( 'beep' );
* // returns true
*
* @example
* var bool = isPropertyKey( 37 );
* // returns true
*
* @example
* var bool = isPropertyKey( {} );
* // returns false
*
* @example
* var bool = isPropertyKey( [] );
* // returns false
*/
function isPropertyKey( value ) {
return (
isString( value ) ||
isSymbol( value ) ||
isNonNegativeInteger( value )
);
}
// EXPORTS //
module.exports = isPropertyKey;
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