iteratorJoin.ts(4,31): error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'.


==== iteratorJoin.ts (1 errors) ====
    const a: string = Iterator.from([1, 2, 3]).join("-");
    const b: string = Iterator.from([1, 2, 3]).join();
    
    Iterator.from([1, 2, 3]).join(0);
                                  ~
!!! error TS2345: Argument of type 'number' is not assignable to parameter of type 'string'.
    