Quiz on Using Inheritance
Test your knowledge of inheritance by taking this quiz.
1
The add() method of Set returns the instance of Set with the added element. Let’s change
const set = new FunctionalSet(['Jack', 'Jill', 'Tom', 'Jerry']);
to:
const set = new FunctionalSet(['Jack', 'Jill', 'Tom', 'Jerry']) .add('Bill');
What change do we have to make in the FunctionalSet class to make the add() function work for this modified code?
class FunctionalSet extends Set {
}
A)
By defining the add() method in FunctionalSet
B)
No change
C)
Making a derived class of FunctionalSet and defining the add() method in it.
Question 1 of 50 attempted
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