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

Modifying an element in the list

Here we show how to modify an element of the list, keeping this modification in the database. A PUT type request will be used for this.

Using Axios with a PUT type request (client side)

The axios.put("/list", options) method is used to perform a PUT type request to the server. We transmit to the server in the options parameter the new text of the modified element and its identifier in the database. The identifier and the new text will allow the item to be updated on the server:

Modifying an element, client side (global-app.js file)

import Element from "./element.js";
const GlobalApp = {
  data() {
    return {
      elements : []  // array of object { text, _id } 
                     // (_id = document id in MongoDB) 
    }
 ...