Prototypical inheritance in NodeJs

Person.js

function Person(name){
    this.name = name;
}
module.exports = Person;

Student.js

var Person = require('./Person.js')
function Student(name, studentNumber){
    Person.call(this, name);
    this.studentNumber = studentNumber;
}

Student.prototype = Object.create(Person.prototype);
Student.prototype.constructor = Student;

module.exports = Student;

test.js

var Person = require('./Person.js');
var Student = require('./Student.js');

var joe = new Person('Joe');
var smith = new Student('Smith', 1234);

if(smith instanceof Student){
    console.log('instance of student');
}
if(smith instanceof Person){
    console.log('instance of person');
}
if(joe instanceof Student === false){
    console.log('not an instance of student');
}
if(joe instanceof Person){
    console.log('but is an instance of a person');
}