Hands-On Full Stack Web Development with Aurelia

ES 6

This version arrives with significant changes in the language syntax. Let's review the new features and compare with the ES5 syntax.

In ES5, to make a near representation of an object in JavaScript, we commonly type something like this:

function Person(name, age) {    this.name = name;    this.age   = age;}Person.prototype.sayHi = function() {    return 'Hi, my name is ' + this.name + ' and i have ' + this.age + ' years old';}var Erikson = new Person('Erikson', 26);Erikson.sayHi(); // 'Hi, my name is Erikson and i have 26 years old'

If we want to improve our code, maybe we can do some refactoring, as follows:

function Person(name, age) {    this.name = name;    this.age   = age;    this.sayHi = function () {        return 'Hi, my name is ' + this.name + ' and i ...