@stdlib/assert-is-circular
v0.2.2
Published
Test if an object-like value contains a circular reference.
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isCircular
Test if an object-like value contains a circular reference.
Installation
npm install @stdlib/assert-is-circular
Usage
var isCircular = require( '@stdlib/assert-is-circular' );
isCircular( value )
Test if an object-like value
contains a circular reference.
var obj = {
'beep': 'boop'
};
var bool = isCircular( obj );
// returns false
obj.self = obj;
bool = isCircular( obj );
// returns true
Notes
- Object-like values include
objects
(except fornull
),arrays
,functions
, regular expressions,Date
objects, and any other JavaScript object to which properties may be bound.
Examples
var isCircular = require( '@stdlib/assert-is-circular' );
var obj1 = {
'a': 'beep',
'b': {
'c': 'boop'
}
};
obj1.b.self = obj1;
var bool = isCircular( obj1 );
// returns true
var obj2 = {
'a': {},
'b': obj1
};
bool = isCircular( obj2 );
// returns true
var arr = [ 1, 2, 3 ];
arr.push( arr );
bool = isCircular( arr );
// returns true
function circ() {}
circ.self = circ;
bool = isCircular( circ );
// returns true
var obj3 = {
'beep': 'boop'
};
bool = isCircular({
'a': obj3,
'b': obj3
});
// returns false
bool = isCircular( {} );
// returns false
bool = isCircular( null );
// returns false
See Also
@stdlib/assert-is-circular-array
: test if a value is an array containing a circular reference.@stdlib/assert-is-circular-plain-object
: test if a value is a plain object containing a circular reference.
Notice
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.