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

Installing the Axios library

We see that, for now, we can manipulate the list items displayed on the HTML page, but we cannot yet update them in the database on the server.

For this, the Vue.js program must be able to communicate with the Node.js server. This is possible using a JavaScript library such as Axios (see https://github.com/axios/axios). All you have to do is include the library in the HTML page (here, it will be in the index.html file) in order to be able to use its features.

Note

The Axios library is a library allowing communication between a browser and a server using Ajax technology. This technology allows a browser and a server to exchange information while remaining on the same HTML page, which is what we want here. This is called a single-page application (SPA) (when the application consists of a single HTML page).

Let’s include the Axios library in the index.html file (using the <script> tag), and display the value of the axios.VERSION variable...