/** * @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'; /** * Test if an object-like value contains a circular reference. * * @module @stdlib/assert/is-circular * * @example * var isCircular = require( '@stdlib/assert/is-circular' ); * * var obj = { * 'a': 'beep', * 'b': { * 'c': 'boop' * } * }; * obj.b.self = obj; * * var bool = isCircular( obj ); * // returns true * * bool = isCircular( null ); * // returns false */ // MODULES // var isCircular = require( './main.js' ); // EXPORTS // module.exports = isCircular;