The JavaScript Interview Handbook: 100+ Interview Questions/

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Challenge: Prototypal Inheritance

Challenge: Prototypal Inheritance

This challenge will test your skills in implementing the prototype-based inheritance in JavaScript.

We'll cover the following...

Problem statement #

Study the code given below and then run it.

Javascript (babel-node)
function Human(name, age) {
    this.name = name;
    this.age = age;
};
function Man(name) {
};
function check(){
    var obj = new Man("Tommy Tan");
    console.log(obj.name) 
    console.log(obj instanceof Human) 
}
check()

It displays undefined and false ...