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308036 (1) [Avatar] Offline
According to Listing 7.15 using ES6/classes one can extend the class & use the super keyword to access the property of the base class, e.g.:
class Person {
 constructor(name) { = name;

class Ninja extends Person {
 constructor(name) {

var ninja1 = new Ninja('Bob');  
// === 'Bob'

But I don't see corresponding pre-ES6 code for this in the book like for the other listings. Can someone please post what the corresponding pre-ES6 code is?
function Person(name) { = name;

function Ninja() {};
Ninja.prototype = new Person();
Object.defineProperty(Ninja.prototype, 'constructor', {
	enumerable: false,
	value: Ninja,
	writable: true

var ninja1 = new Ninja('Bob'); 
// === undefined;