Book Image

JavaScript from Frontend to Backend

By : Eric Sarrion
Book Image

JavaScript from Frontend to Backend

By: Eric Sarrion

Overview of this book

JavaScript, the most widely used programming language in the world, has numerous libraries and modules and a dizzying array of need-to-know topics. Picking a starting point can be difficult. Enter JavaScript from Frontend to Backend. This concise, practical guide will get you up to speed in next to no time. This book begins with the basics of variables and objects in JavaScript and then moves quickly on to building components on the client-side with Vue.js and a simple list management application. After that, the focus shifts to the server-side and Node.js, where you’ll examine the MVC model and explore the Express module. Once you've got to grips with the server-side and the client-side, the only thing that remains is the database. You’ll discover MongoDB and the Mongoose module. In the final chapter of this fast-paced guide, you'll combine all these pieces to integrate a Vue.js application into a Node.js server, using Express to structure the server code and MongoDB to store the information. By the end of this book, you will have the skills and confidence to successfully implement JavaScript concepts in your own projects and begin your career as a JavaScript developer.
Table of Contents (14 chapters)
1
Part 1: JavaScript Syntax
4
Part 2: JavaScript on the Client-Side
8
Part 3: JavaScript on the Server-Side

Classes and objects

The notion of classes and objects is fundamental to programming languages. JavaScript allows them to be used as well.

A class is used to represent any type of data. For example, people, customers, cars, and so on. We can define a class to represent each of these types of elements, for example, a Person class to represent people, a Client class to represent customers, and a Car class to represent cars.

Note

Note that the class name traditionally begins with an uppercase letter.

An object, on the other hand, will be a particular element of a class (this element will be also called an instance). For example, among all the people of the class Person, the person identified by his name “Clinton” and his first name “Bill” represents a particular object of the class Person. This object can be associated, for example, with the variable p in the program. We can thus create variables to identify each object associated with the class...