All files / assert/has-property/lib main.js

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/**
* @license Apache-2.0
*
* Copyright (c) 2018 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';
 
// MAIN //
 
/**
* Tests if an object has a specified property, either own or inherited.
*
* @param {*} value - value to test
* @param {*} property - property to test
* @returns {boolean} boolean indicating if an object has a specified property
*
* @example
* var beep = {
*     'boop': true
* };
*
* var bool = hasProp( beep, 'boop' );
* // returns true
*
* @example
* var beep = {
*     'boop': true
* };
*
* var bool = hasProp( beep, 'bap' );
* // returns false
*/
function hasProp( value, property ) {
	if ( value === void 0 || value === null ) {
		return false;
	}
	if ( typeof property === 'symbol' ) {
		return property in Object( value );
	}
	return ( String( property ) in Object( value ) );
}
 
 
// EXPORTS //
 
module.exports = hasProp;