interfaceImplementation4.ts(8,7): error TS2420: Class 'C5' incorrectly implements interface 'I1'.
  Property 'iObj' is missing in type 'C5' but required in type 'I1'.
interfaceImplementation4.ts(9,12): error TS2564: Property 'iNum' has no initializer and is not definitely assigned in the constructor.


==== interfaceImplementation4.ts (2 errors) ====
    interface I1 {
        iObj:{ };
        iNum:number;
        iAny:any;
        iFn():void;
    }
    
    class C5 implements I1 {
          ~~
!!! error TS2420: Class 'C5' incorrectly implements interface 'I1'.
!!! error TS2420:   Property 'iObj' is missing in type 'C5' but required in type 'I1'.
!!! related TS2728 interfaceImplementation4.ts:2:5: 'iObj' is declared here.
        public iNum:number;
               ~~~~
!!! error TS2564: Property 'iNum' has no initializer and is not definitely assigned in the constructor.
        public iAny:any;
        public iFn() { }
    }
    