JavaScript Training: Intermediate

Advance your coding expertise with this three-day Intermediate JavaScript course. Master asynchronous programming, APIs, object-oriented concepts, and frameworks like React and Angular. Build complex, high-performing web applications. Book your place today and elevate your JavaScript skills.

Course Overview

This intermediate JavaScript course dives deeper into the language and its ecosystem, giving you the tools to create dynamic, performant web applications. Delivered online or at our London studio, the course combines expert instruction with hands-on exercises to ensure you can immediately apply what you learn.

You will explore advanced programming concepts such as closures, higher-order functions, prototypes, and functional programming, as well as asynchronous programming with callbacks, Promises, and async/await. You’ll also gain practical experience with APIs, modern JavaScript frameworks, and client-side storage.

The course also introduces essential development practices for structuring large-scale applications, debugging and testing, and optimising performance. By the end, you will have the confidence to write clean, maintainable code and tackle complex JavaScript projects.

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Dates

Next course starts on:16 Apr 2026
Intermediate Level
3 consecutive days
16 Apr 2026
18 Aug 2026
9 Dec 2026
If the training dates listed here don’t suit your schedule, let us know and we can arrange a tailored training course for you where we can customise both the content and the dates of the course. To find more about our Tailored Training courses,click here.

Course Outline

Here is what you will learn on this JavaScript course in more detail. Click the topics below to explore what is covered in each section.

What’s Included in Your Course

Every Docklands Media course comes with a range of added benefits to support your learning—at no extra cost.

Course Certification

Course Certification

Receive an official certificate of completion to validate your training. Ideal for portfolios, CVs, or proving your skills in JavaScript.

Lifetime Support

Lifetime Support

Access our email and phone support for a lifetime. Contact us with any technical questions related to what you have learned on your JavaScript course.

Free Course Retake

Free Course Retake

Need a refresher? Retake the same JavaScript course for free within 24 months. A great way to solidify your learning or get up to speed with new software updates.

Course Materials & Videos

Course Materials & Videos

Receive training notes, project files, and 7-day access to instructor-led video tutorials. Perfect for reinforcing key lessons and practising at your own pace.

Offers & Discounts

We're committed to providing the best training experience possible. That's why we offer a range of discounts and flexible payment options to make your JavaScript course more accessible and affordable.

Group Bookings & Non-Profits

Group Bookings & Non-Profits

Get discounted rates when booking for two or more people, or if you're enrolling from a charity. Save 5–15% depending on your group size or institution type.

Early Bird Discount

Early Bird Discount

Book your JavaScript course at least three months in advance and get 10% off. Secure your place early and save on top-quality creative training.

Money-Back Guarantee

Money-Back Guarantee

If you're not fully satisfied on the first day of your JavaScript course, let us know. We'll do our best to make it right—or refund you in full. No hassle, no risk.

Instalment Plans

Instalment Plans

Spread the cost of your training over 3, 6, or 12 months. Our instalment plans help make creative learning more accessible, with interest rates as low as 5%.

Clients

As well as creative individuals, we are also the preferred training provider for some of the most successful global brands and organisations.

4
NHS
Accenture
Apple
Army
BBC
Bentley
Boeing
British Council
Cabinet Office
Chelsea
Cisco
Costa
Disney
Dyson
F1
Food Standards Agency
Global
Google
Harrods
4
NHS
Accenture
Apple
Army
BBC
Bentley
Boeing
British Council
Cabinet Office
Chelsea
Cisco
Costa
Disney
Dyson
F1
Food Standards Agency
Global
Google
Harrods
4
NHS
Accenture
Apple
Army
BBC
Bentley
Boeing
British Council
Cabinet Office
Chelsea
Cisco
Costa
Disney
Dyson
F1
Food Standards Agency
Global
Google
Harrods
HSBC
IBM
ITV
Jaguar Land Rover
John Lewis
Mercedes
Microsoft
NATO OTAN
Nokia
Pandora
Penguin Random House
Pfizer
PlayStation
Sky
Sony
The Times
Ticketmaster
Turner
UK Parliament
Vevo
HSBC
IBM
ITV
Jaguar Land Rover
John Lewis
Mercedes
Microsoft
NATO OTAN
Nokia
Pandora
Penguin Random House
Pfizer
PlayStation
Sky
Sony
The Times
Ticketmaster
Turner
UK Parliament
Vevo
HSBC
IBM
ITV
Jaguar Land Rover
John Lewis
Mercedes
Microsoft
NATO OTAN
Nokia
Pandora
Penguin Random House
Pfizer
PlayStation
Sky
Sony
The Times
Ticketmaster
Turner
UK Parliament
Vevo

FAQ

Just a few of the common questions asked by our students.

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Enquire

Contact us today to learn more about our courses and how we can help you achieve your creative goals.

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