This instructor-led JavaScript Developer training course gives you the practical skills needed to build modern web applications. The course is designed to enable you to dive into one of the many JavaScript frameworks and is ideal for new developers or those refreshing their skills.
JavaScript Developer
Become proficient with JavaScript for real-world application development
This 4-day JavaScript Developer course builds your understanding of JavaScript from the ground up, helping you to apply modern syntax and techniques in live projects. Gain clarity, confidence, and core developer skills.
Learning objectives
- Build and deploy modern web apps
- Use built-in data types effectively
- Understand functions and scope
- Handle DOM and browser events
- Apply object-oriented principles
- Use functional programming tools
- Manage async tasks with Promises and async/await
- Create modular apps using tooling
- Test and validate your code
What you’ll learn
Get hands-on with practical JavaScript skills including functions, events, async programming, DOM manipulation, and app modularisation. This course equips you with the ability to build interactive and structured apps to expand your technical knowledge and help with current and future work projects.
Working with variables and data types
Explore how JavaScript handles data through variables, constants and dynamic typing. You’ll work with primitive types like strings and numbers, alongside complex structures such as arrays and objects. By mastering these, you’ll gain a solid foundation for manipulating and transforming data in real-world applications.
Functions, scope and programme flow
Learn to structure code with conditional logic, loops and error handling. Discover how different types of functions behave, including arrow functions and defaults, while exploring scope, closures and the scope chain. These concepts help you write modular, reusable functions that keep applications efficient and maintainable.
Programming approaches: object-oriented and functional
Develop skills in object-oriented programming with classes, constructors and inheritance, while also learning functional techniques like pure functions, higher-order functions and immutability. By combining these approaches, you’ll be able to choose the right style for each problem and organise projects with cleaner, more scalable structures.
DOM interaction, events and asynchronous tasks
Get practical experience accessing and updating the Document Object Model, creating interactive interfaces through event handling. You’ll then progress to asynchronous programming, managing background tasks with callbacks, Promises and async/await. Together, these skills enable you to build responsive, dynamic applications that process real-time data effectively.
What’s included
- 4 days of instructor-led training
- Live virtual classroom format
- Hands-on live labs
- Practical code examples
- Course materials and resources
- Expert trainers with industry experience
- Structured learning environment
- Post-course support available
Key facts
Ideal for
New or returning developers who want to write, maintain, or improve JavaScript applications and move beyond the basics.
Prerequisites
Familiarity with HTML, CSS and basic programming concepts is recommended. Ideal preparation includes our Introduction to Programming – JavaScript and HTML & CSS courses.
Learning experience
Our experienced trainers and interactive labs create a focused, practical environment – so you can put theory into practice from day one.
FAQs
This practical JavaScript Developer course covers the language’s core and advanced features, enabling you to create dynamic, interactive apps and understand how modern JavaScript works in real projects.
What prior experience do I need for this course?
You should have some familiarity with HTML and CSS and a basic understanding of programming concepts. Our introductory courses can help you prepare.
Is the course suitable for absolute beginners?
This course is ideal if you’re new to JavaScript but have some prior coding experience or are returning to JavaScript after a break.
Can I complete tasks and activities to support my learning?
Yes. The course includes interactive labs and practical exercises so you can immediately apply what you learn.
What’s the difference between this and a JavaScript fundamentals course?
This course goes beyond the basics, including object-oriented and functional programming, DOM interaction, async programming, modules and testing.
Can this course help me prepare for framework training like React or Angular?
Absolutely. It provides a strong foundation in core JavaScript, which is essential before learning modern frameworks.
What our customers say
“Very interesting deep-dives into JavaScript to fully be able to understand the taught concepts.”
Filip, Developer, Government
“I really enjoyed this course, it was clear the instructor had in-depth knowledge about the subject and was keen on answering questions / explaining problems thoroughly. I also appreciated learning about the principles, best practice standards, and the reasoning behind these.”
Michaela, Data Scientist, Government
Why study with StayAhead
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Experiential instructor-led training
Courses are delivered by experienced instructors using hands-on, practical live labs