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

Character strings

Strings are widely used in programming languages. They are used to represent text entered by a user or text that will be displayed to a user.

Creating a character string

A character string is represented by an object of class String. But since character strings are widely used in JavaScript, the language allows them to be used by surrounding them with double quotes " and " or single quotes ' and '. It is also possible, for certain uses, to use backticks (reverse quotation marks ' and ').

Note

The string literal must in this case begin and end with the same type of quotes.

Now let’s see how to create a string using these various methods.

Creating a string literal using double or single quotes

The easiest way to create a string literal is to use the single or double quote notation:

Creating a string literal with double quotes

var s = "String 1";
console.log("s =", s);

Or, with single...