Book Image

Node.js Web Development - Fourth Edition

By : David Herron
Book Image

Node.js Web Development - Fourth Edition

By: David Herron

Overview of this book

Node.js is a server-side JavaScript platform using an event-driven, non-blocking I/O model allowing users to build fast and scalable data-intensive applications running in real time. This book gives you an excellent starting point, bringing you straight to the heart of developing web applications with Node.js. You will progress from a rudimentary knowledge of JavaScript and server-side development to being able to create, maintain, deploy and test your own Node.js application.You will understand the importance of transitioning to functions that return Promise objects, and the difference between fs, fs/promises and fs-extra. With this book you'll learn how to use the HTTP Server and Client objects, data storage with both SQL and MongoDB databases, real-time applications with Socket.IO, mobile-first theming with Bootstrap, microservice deployment with Docker, authenticating against third-party services using OAuth, and use some well known tools to beef up security of Express 4.16 applications.
Table of Contents (19 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

ES2015 multiline and template strings


The previous example showed two of the new features introduced with ES2015, multiline and template strings. The feature is meant to simplify our life while creating text strings.

The existing string representations use single quotes and double quotes. Template strings are delimited with the backtick character that's also known as the grave accent:

`template string text`

Before ES2015, one way to implement a multiline string was this construct:

["<html><head><title>Hello, world!</title></head>", 
 "<body><h1>Hello, world!</h1>", 
 "<p><a href='/osinfo'>OS Info</a></p>", 
 "</body></html>"] 
.join('\n') 

Yes, that was the code used in the same example in previous versions of this book. This is what we can do with ES2015:

`<html><head><title>Hello, world!</title></head> 
<body><h1>Hello, world!</h1> 
<p><a href='/osinfo...