Inspired by https://stackoverflow.com/questions/14962018/detecting-and-fixing-circular-references-in-javascript

isCyclic.ts

/**
 * @see https://stackoverflow.com/questions/14962018/detecting-and-fixing-circular-references-in-javascript
 */
export function isCyclic(obj: Record<string, unknown>): boolean {
  const seenObjects: unknown[] = [];
  function detect(objToDetect: unknown) {
    if (objToDetect && typeof objToDetect === 'object') {
      if (seenObjects.includes(objToDetect)) {
        return true;
      }
      seenObjects.push(objToDetect);
      for (const [key, value] of Object.entries(objToDetect ?? {})) {
        if (
          Object.prototype.hasOwnProperty.call(objToDetect, key) &&
          detect(value)
        ) {
          return true;
        }
      }
    }
    return false;
  }
  return detect(obj);
}