@safejs/serializer/src/serializers/set/set.spec.ts

Serializer is a superset of JSON that includes recursive objects, dates, regular expressions, functions and others which you also can expand by yourself

import { setSerializer } from "./set";

describe("Set", () => {
    it("should determine", () => {
        expect(setSerializer.determine(new Set())).toBeTruthy();
    });
});