@stdlib/utils-inherit/lib/polyfill.js

Implement prototypical inheritance by replacing the prototype of one constructor with the prototype of another constructor.

/**
* @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';

// FUNCTIONS //

/**
* Dummy constructor.
*
* @private
*/
function Ctor() {
	// Empty...
}


// MAIN //

/**
* An `Object.create` shim for older JavaScript engines.
*
* @private
* @param {Object} proto - prototype
* @returns {Object} created object
*
* @example
* var obj = createObject( Object.prototype );
* // returns {}
*/
function createObject( proto ) {
	Ctor.prototype = proto;
	return new Ctor();
}


// EXPORTS //

module.exports = createObject;