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

Inserting a new element in the list

Let’s see how to store a new element in the list, following a click on the Add Element button.

The text associated with this element must be transmitted to the server, which will be of the form Element X. We will see later how to modify this text after clicking on the Modify button.

The add() method defined in the <GlobalApp> component is used to insert a new element into the displayed list. It will be necessary to add instructions that use the Axios library in order to also insert this new element in the MongoDB elements collection.

Before starting to use Axios, it is useful to slightly modify the JavaScript program written with Vue.js. To do this, we will use a new attribute when creating the <Element> component, replacing the text and index attributes with the element attribute.

Replacing the text and index attributes with the element attribute

When creating an element, we currently use the element’s text...