Practice Classes And Modules Multiple Choice Questions with Answers Quiz-4 - MCQGeeks.com

Q.1.

If A is the superclass and B is the subclass, then subclass inherting the superclass can be represented as

B=inherit(A);
B=A.inherit();
B.prototype=inherit(A);
B.prototype=inherit(A.prototype);

Explanation

Q.2.

The snippet that filters the filtered set is

var t=new FilteredSet(s, {function(s) {return !(x instanceof Set);});
var t=new FilteredSet{function(s) {return !(x instanceof Set);});
var t=new FilteredSet(s, {function(s) {return (x instanceof Set);});
var t=new FilteredSet(s, {function(s) {return x;});

Q.3.

The method that can be used to create new properties and also to modify the attributes of existing properties is

Object.defineProperty()
Object.defineProperties()
Both Object.defineProperty() and Object.defineProperties()
None of the mentioned

Explanation