93 lines
1.7 KiB
Markdown
93 lines
1.7 KiB
Markdown
<!--
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@license Apache-2.0
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Copyright (c) 2018 The Stdlib Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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# isCircularArray
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> Test if a value is an array containing a circular reference.
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<section class="usage">
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## Usage
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```javascript
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var isCircularArray = require( '@stdlib/assert/is-circular-array' );
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```
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#### isCircularArray( value )
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Tests if a `value` is an `array` containing a circular reference.
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```javascript
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var arr = [ 1, 2, 3 ];
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var bool = isCircularArray( arr );
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// returns false
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arr.push( arr );
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bool = isCircularArray( arr );
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// returns true
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arr.pop();
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arr.self = arr;
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bool = isCircularArray( arr );
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// returns true
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```
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</section>
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<!-- /.usage -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var isCircularArray = require( '@stdlib/assert/is-circular-array' );
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var arr = [ 1, 2, 3 ];
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arr.push( arr );
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console.log( isCircularArray( arr ) );
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// => true
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var obj = {
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'beep': 'boop'
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};
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obj.self = obj;
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console.log( isCircularArray( obj ) );
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// => false
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console.log( isCircularArray( [] ) );
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// => false
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console.log( isCircularArray( null ) );
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// => false
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```
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</section>
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<!-- /.examples -->
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<section class="links">
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</section>
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<!-- /.links -->
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