High-performance circular reference check for objects (or arrays) w/ no dependencies
npm install is-circular
var isCircular = require('is-circular')
var circularObj = {
foo: 1,
bar: 2
}
circularObj.qux = circularObj
isCircular(circularObj) // true
var obj = {
foo: 1,
bar: 2,
qux: 3
}
isCircular(obj) // false
MIT