This book is volume 3 of Web Development from Beginner to Paid Professional. In this volume, you’ll learn JavaScript Algorithms and Data Structures. While HTML and CSS control the content and styling of a page, JavaScript is used to make it interactive. In this volume, you’ll learn the fundamentals of JavaScript including variables, arrays, objects, loops, and functions.Once you have the fundamentals down, you’ll apply that knowledge by creating algorithms to manipulate strings, factorialize numbers, and even calculate the orbit of the International Space Station.Along the way, you’ll also learn two important programming styles or paradigms: Object Oriented Programming (OOP) and Functional Programming (FP).The great thing about web development is it’s very suitable for people coming from many different backgrounds. So, it doesn’t matter if you have little or no technical experience, or if you do have a technical background and you’re looking to transition your skill sets into web development.I know there are more than sufficient resources online to teach absolute beginners everything they need to learn web development from scratch. But this series is different because it addresses a few web development problems. The credibility of a web developer is much more than their credentials. It’s actually about the strength of their portfolio.Employment opportunities often come from work samples and concrete skills, rather than a college degree. So, you need to learn well enough. This book will not only help you learn well and build a stunning portfolio, it will also provide you continuous help and support.With this book and my dedicated 24/7 help and support team, there’s nothing for you to fear. I have helped many web developers update their development skills, launch successful careers and get hired for remote jobs. I notice that even the most ambitious beginners can run into problems, such as unable to decide where to begin. Sometimes they get completely lost on the way and therefore need further help.The truth is everyone needs help at one point or the other to learn html5, CSS or Javascript correctly in their web development journey. I put additional coding challenges and their solutions in this volume. You will also get further help if you use the free support link at the bottom of this book. I will help you learn well.Finally, if you buy any volume of the series, I will add you to my web development community so you can continue to learn and get more help until you become a well-paid professional.