Step Up Your JS: A Comprehensive Guide to Intermediate JavaScript

50 Lessons
3 Quizzes
17 Challenges
224 Playgrounds
14 Illustrations

Course Overview

This is for those familiar with the basics of JavaScript and looking to advance their knowledge and really understand how the language works. We'll cover topics that are essential to help you read, understand, and write better code. Before starting, you should be familiar with the basi...

How You'll Learn

Hands-on coding environments

You don’t get better at swimming by watching others. Coding is no different. Practice as you learn with live code environments inside your browser.

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

No set-up required

Start learning immediately instead of fiddling with SDKs and IDEs. It‘s all on the cloud.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Hands-on coding environments

You don’t get better at swimming by watching others. Coding is no different. Practice as you learn with live code environments inside your browser.

Faster than videos

Videos are holding you back. The average video tutorial is spoken at 150 words per minute, while you can read at 250. That‘s why our courses are text-based.

No set-up required

Start learning immediately instead of fiddling with SDKs and IDEs. It‘s all on the cloud.

Progress you can show

Built in assessments let you test your skills. Completion certificates let you show them off.

Course Contents

6. Functional Programming: Arrays and their Powerful Methods
9. Advanced Modern JavaScript - Cutting Edge ES2015+
10. Conclusion

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What our learners are saying

What our learners are saying

In response to "The Complete Rules to 'this'": Clear and to the point. This is one of the best explanations on “this” available on the net. I particularly liked how you explained about global function invocation being implicit method invocation on window. Thank you.

Yangshun Tay

Front-End Engineer at Facebook

This is an excellent javascript course. Arnav covers deep basics well by giving enough examples and explaining what exactly is happening - how/ when values are changing. His diagrams, for example local vs global scope or the table representation for values vs reference makes reader easily understand what he is talking about and how it works. The quizzes at the end of each chapter, makes one think through what he or she has learnt and apply those concepts to arrive at the answers. That helps a lot in nailing down the core concepts.

Jaya Arasalike

Bootcamp Graduate & Full-Stack Developer

In response to "The Complete Rules to 'this'": Clear and to the point. This is one of the best explanations on “this” available on the net. I particularly liked how you explained about global function invocation being implicit method invocation on window. Thank you.

Yangshun Tay

Front-End Engineer at Facebook

This is an excellent javascript course. Arnav covers deep basics well by giving enough examples and explaining what exactly is happening - how/ when values are changing. His diagrams, for example local vs global scope or the table representation for values vs reference makes reader easily understand what he is talking about and how it works. The quizzes at the end of each chapter, makes one think through what he or she has learnt and apply those concepts to arrive at the answers. That helps a lot in nailing down the core concepts.

Jaya Arasalike

Bootcamp Graduate & Full-Stack Developer

In response to the Prototypes & Inheritance articles: Having just finished a JavaScript course in college, this was a great stepping stone to move into an intermediate level if JS. Thank you. It was also very well laid out.

Irshaad Bijan Adatia

Computer Science Student

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