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Learn ECMAScript

You're reading from Learn ECMAScript Discover the latest ECMAScript features in order to write cleaner code and learn the fundamentals of JavaScript

Product type Paperback

Published in Feb 2018

Publisher

ISBN-13 9781788620062

Length 298 pages

Edition 2nd Edition

Languages

JavaScript

Tools

ECMAScript

Concepts

Programming Language

Authors (2):

Narayan Prusty

MEHUL MOHAN

View More author details

Table of Contents (14) Chapters

Preface

1. Getting Started with ECMAScript FREE CHAPTER

2. Knowing Your Library

3. Using Iterators

4. Asynchronous Programming

5. Modular Programming

6. Implementing the Reflect API

7. Proxies

8. Classes

9. JavaScript on the Web

10. Storage APIs in JavaScript

11. Web and Service Workers

12. Shared Memory and Atomics

13. Other Books You May Enjoy

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Understanding object-oriented JavaScript

Before we proceed with ES6 classes, let's refresh our knowledge of JavaScript data types, constructors, and inheritance. While learning classes, we will be comparing the syntax of constructors and prototype-based inheritance with the syntax of classes. Therefore, it is important to have a good grasp of these topics.

The JavaScript data types

JavaScript variables hold (or store) data (or values). The type of data variables that they hold is called the data type. In JavaScript, there are seven different data types: number, string, Boolean, null, undefined, symbol, and object.

When it comes to holding objects, variables hold the object reference (that is, the memory address) instead of the object itself. If you're coming from a C/C++ background, you can relate them to pointers, but not exactly.

All data types other than objects are called primitive data types.

Note

The arrays and functions are actually the JavaScript objects. A lot of things are objects under...

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Authors (2)

Mohan

Mohan

Vineeth Mohan is an architect and developer. He currently works as the CTO at Factweavers Technologies and is also an Elasticsearch-certified trainer. He loves to spend time studying emerging technologies and applications related to data analytics, data visualizations, machine learning, natural language processing, and developments in search analytics. He began coding during his high school days, which later ignited his interest in computer science, and he pursued engineering at Model Engineering College, Cochin. He was recruited by the search giant Yahoo! during his college days. After 2 years of work at Yahoo! on various big data projects, he joined a start-up that dealt with search and analytics. Finally, he started his own big data consulting company, Factweavers. Under his leadership and technical expertise, Factweavers is one of the early adopters of Elasticsearch and has been engaged with projects related to end-to-end big data solutions and analytics for the last few years. There, he got the opportunity to learn various big-data-based technologies, such as Hadoop, and high-performance data ingress systems and storage. Later, he moved to a start-up in his hometown, where he chose Elasticsearch as the primary search and analytic engine for the project assigned to him. Later in 2014, he founded Factweavers Technologies along with Jalaluddeen; it is consultancy that aims at providing Elasticsearch-based solutions. He is also an Elasticsearch-certified corporate trainer who conducts trainings in India. Till date, he has worked on numerous projects that are mostly based on Elasticsearch and has trained numerous multinationals on Elasticsearch.

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Narayan Prusty

Narayan Prusty

Narayan Prusty is a full-stack developer. He works as a consultant for various start-ups around the world. He has worked on various technologies and programming languages but is very passionate about JavaScript, WordPress, Ethereum, Solr, React, Cordova, MongoDB, and AWS. Apart from consulting for various start-ups, he also runs a blog titled QNimate and a video tutorial site titled QScutter, where he shares information about a lot of the technologies he works on.

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