Book Image

Learning JavaScript Data Structures and Algorithms - Third Edition

By : Loiane Groner
Book Image

Learning JavaScript Data Structures and Algorithms - Third Edition

By: Loiane Groner

Overview of this book

A data structure is a particular way of organizing data in a computer to utilize resources efficiently. Data structures and algorithms are the base of every solution to any programming problem. With this book, you will learn to write complex and powerful code using the latest ES 2017 features. Learning JavaScript Data Structures and Algorithms begins by covering the basics of JavaScript and introduces you to ECMAScript 2017, before gradually moving on to the most important data structures such as arrays, queues, stacks, and linked lists. You will gain in-depth knowledge of how hash tables and set data structures function as well as how trees and hash maps can be used to search files in an HD or represent a database. This book serves as a route to take you deeper into JavaScript. You’ll also get a greater understanding of why and how graphs, one of the most complex data structures, are largely used in GPS navigation systems in social networks. Toward the end of the book, you’ll discover how all the theories presented in this book can be applied to solve real-world problems while working on your own computer networks and Facebook searches.
Table of Contents (22 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Chapter 1. JavaScript – A Quick Overview

JavaScript is a very powerful language. It is one of the most popular languages in the world and is one of the most prominent languages on the internet. For example, GitHub (the world's largest code host, available at https://github.com) hosts over 400,000 JavaScript repositories (the largest number of projects available is in JavaScript; refer to http://githut.info). The number of projects in JavaScript and GitHub grows every year.

JavaScript is not a language that can only be used in the frontend. It can also be used in the backend, and Node.js is the technology responsible for this. The number of Node Package Modules (npm), https://www.npmjs.org, has also grown exponentially. JavaScript can also be used for mobile development and is one of the most popular frameworks in Apache Cordova (https://cordova.apache.org), which is a mobile hybrid framework that allows developers to code using HTML, CSS, and JavaScript, which allows you to build an app and generate an APK file for Android and IPA file for iOS (Apple). And of course, let's not forget about desktop applications. We can write desktop applications compatible with Linux, Mac OS, and Windows using a JavaScript framework called Electron (https://electron.atom.io). JavaScript is also used in embedded and Internet of Things (IoT) devices. As you can see, JavaScript is everywhere!

JavaScript is a must-have on your resume if you are or are becoming a web developer.

In this chapter, you will learn the syntax and some necessary basic functionalities of JavaScript so that we can start developing our own data structures and algorithms. We will cover:

  • Setting up the environment and JavaScript basics
  • Controlling structures and functions
  • Object-oriented programming in JavaScript
  • Debugging and tools