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

Chapter 6: Creating and Using Node.js Modules

Modules are at the heart of Node.js. They correspond to JavaScript files and can be used in our applications. A program for the Node.js server will consist of a set of modules, that is, JavaScript files.

There are three kinds of modules:

  • Modules that we write ourselves for our applications.
  • Modules internal to Node.js and usable directly.
  • Modules that can be downloaded from the internet using a utility called npm (npm stands for Node.js package manager). This npm utility is installed with Node.js itself.

In this chapter, we will learn how to create and use these different types of modules.

Regardless of the type of modules used, the require(moduleName) instruction (see below) allows the module called moduleName to be included in the current file. The functionalities of the module will then be accessible.

Here are the topics covered in this chapter:

  • Using our own modules
  • Using internal Node.js...