Expert JavaScript

Video description

5+ Hours of Video Instruction


How do you become an expert JavaScript developer? Let Sahil Khosla delve into the concepts that take you from intermediate to expert in about 6 hours.

JavaScript has become one of the most popular programming languages ever. Developers of all levels are flocking towards JavaScript. And it is no longer restricted to web. Node.js has allowed developers to use JavaScript on the server side as well.


Write Elegant JS ES6+ Code for the Web, Backend, and Lambdas

Sahil Khosla gives students the chance to go beyond the basics and learn about the concepts that are hard to find in an average JavaScript book or video but are essential to mastering the language. In this LiveLessons video, Sahil covers several approaches to writing asynchronous JavaScript that can be leveraged to call APIs or long-running functions without freezing the A61. Learn how to write elegant JS code with ES6 syntax for use in web apps, node backend, or lambdas.

Access the supplemental files for this LiveLesson at

About the Instructor

Sahil Khosla is a software engineer with 10+ years of experience in developing user-facing apps and websites. He is currently part of the front-end team at OANDA and has previously worked at Expedia, where he was part of the group responsible for revamping the mobile web experience. A multipotentialite at heart, Sahil loves to learn and equally loves to share that knowledge with others. He specializes in breaking down complicated concepts and making them easy to understand, with analogies and diagrams.

Skill Level
  • Intermediate to Advanced
What You Will Learn
  • Get a deeper understanding of advanced concepts such as Promises, Async/Await, Apply/Call/Bind, and frequently used design patterns for writing performant, bug-free, and maintainable code.
  • Gain clarity on vanilla JavaScript concepts so you can focus on learning modern web frameworks without getting lost.
  • Understand how you can develop and publish your own open-source JavaScript libraries.
Who Should Take This Course
  • Front-end engineers
  • Full-stack engineers
  • Web developers
Course Requirements
  • Basic understanding of JavaScript and experience using it for developing web applications
About Pearson Video Training

Pearson publishes expert-led video tutorials covering a wide selection of technology topics designed to teach you the skills you need to succeed. These professional and personal technology videos feature world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, Pearson IT Certification, Sams, and Que. Topics include IT Certification, Network Security, Cisco Technology, Programming, Web Development, Mobile Development, and more. Learn more about Pearson Video training at

Table of contents

  1. Introduction
    1. Expert JavaScript: Introduction
  2. Lesson 1: Understand Objects, Hoisting, and Execution
    1. Learning objectives
    2. 1.1 Learn about objects
    3. 1.2 Explore out-of-the-box features
    4. 1.3 Understand Execution Context
    5. 1.4 Uncover two phases of running JS code
    6. 1.5 Learn about variable environments
    7. 1.6 Understand Scope Chain
  3. Lesson 2: Discover Functions and IIFEs
    1. Learning objectives
    2. 2.1 Discover functions in JS
    3. 2.2 Understand the difference between objects and functions
    4. 2.3 Learn about IIFEs
    5. 2.4 Explore different ways to use IIFEs
  4. Lesson 3: Use Closures, Apply/Call/Bind
    1. Learning objectives
    2. 3.1 Understand "this"
    3. 3.2 Understand closures
    4. 3.3 Learn how IIFEs come to the rescue
    5. 3.4 Use Apply/Call/Bind methods
  5. Lesson 4: Review ES6 Syntax
    1. Learning objectives
    2. 4.1 Understand the difference between Var, Const, and Let
    3. 4.2 Use Template Strings
    4. 4.3 Use Object Literals
    5. 4.4 Understand Arrow Functions syntax
    6. 4.5 Accept default params
    7. 4.6 Uncover the Spread operator
    8. 4.7 De-structure an array and object
  6. Lesson 5: Learn ES6 Array Methods
    1. Learning objectives
    2. 5.1 Understand the anatomy of ES6 array methods
    3. 5.2 Explore several array methods in ES6
  7. Lesson 6: Work with Classes and Inheritance
    1. Learning objectives
    2. 6.1 Learn about Prototypes and the Prototype Chain
    3. 6.2 Understand how Prototypical Inheritance works
    4. 6.3 Understand the old way of creating classes
    5. 6.4 Learn the new way to create classes
  8. Lesson 7: Learn Async Programming
    1. Learning objectives
    2. 7.1 Understand JavaScript Event Loop
    3. 7.2 Learn how callbacks work
    4. 7.3 Understand how Promises work
    5. 7.4 Explore several ways of using Promises
    6. 7.5 Learn Async/Await
  9. Lesson 8: Publish a Library to NPM
    1. Learning objectives
    2. 8.1 Set up a new library using base-npm-lib
    3. 8.2 Implement features in the new library
    4. 8.3 Build the library using Webpack and Babel
    5. 8.4 Publish the library to public NPM
    6. 8.5 Test the published library
  10. Summary
    1. Expert JavaScript: Summary

Product information

  • Title: Expert JavaScript
  • Author(s): Sahil Khosla
  • Release date: April 2021
  • Publisher(s): Pearson
  • ISBN: 0137333137