Classes

Question 1

Syntax of isPrototype

Answer 1

objA.isPrototypeOf(objB);

true if objA is a parent of objB

Question 2

Class constructor participates in instanceof checks. True / False?

Answer 2

False.

Only Class.property properties participate in the test.

Question 3

toStringTag is used for ___

Answer 3

customizing behaviour of Object’s toString method to show strings like [object Array]