Learning Node.js Development

coverpage

Title Page

Packt Upsell

Why subscribe?

PacktPub.com

Contributor

About the author

Packt is searching for authors like you

Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Conventions used

Get in touch

Reviews

Getting Set Up

Node.js installation

Node.js version confirmation

Installing Node

Verifying installation

What is Node?

Differences between JavaScript coding using Node and in the browser

Why use Node

Blocking and non-blocking software development

The working of blocking I/O

The working non-blocking I/O

Blocking and non-blocking examples using Terminal

Node community – problem solving open source libraries

Different text editors for node applications

Hello World – creating and running the first Node app

Creating the Node application

Running the Node application

Summary

Node Fundamentals – Part 1

Module basics

Using case for require()

Initialization of an application

The built-in module to use require()

Creating and appending files in the File System module

The OS module in require()

Concatenating user.username

Using template strings

Require own files

Making a new file to load other files

Exporting files from note.js to use in app.js

A simple example of the working of the exports object

Exporting the functions

Exercise – adding a new function to the export object

Solution to the exercise

Third-party modules

Creating projects using npm modules

Installing the lodash module in our app

Installation of lodash

Using the utilities of lodash

Using the _.isString utility

Using _.uniq

The node_modules folder

Global modules

Installing the nodemon module

Executing nodemon

Getting input

Getting input from the user inside the command line

Accessing the command-line argument for the notes application

Adding if/else statements

Exercise – adding two else if clauses to an if block

Solution to the exercise

Getting the specific note information

Summary

Node Fundamentals – Part 2

yargs

Installing yargs

Running yargs

Working with the add command

Working with the list command

The read command

Dealing with the errors in parsing commands

The remove command

Fetching command

JSON

Converting objects into strings

Defining a string and using in app as an object

Converting a string back to an object

Storing the string in a file

Writing the file in the playground folder

Reading out the content in the file

Adding and saving notes

Adding notes

Adding notes to the notes array

Fetching new notes

Trying and catching code block

Making the title unique

Refactoring

Moving functionality into individual functions

Working with fetchNotes

Working with saveNotes

Testing the functionality

Summary

Node Fundamentals – Part 3

Removing a note