About the course
This comprehensive JavaScript training course is designed for developers who need to move beyond "copy-paste" scripting and master the modern language features used in today's enterprise frameworks (like React, Angular, and Node.js).
We focus on Modern JS - specifically the shift from ES5 to ES6 and beyond. You will learn how to write clean, asynchronous, and modular code. We don't just teach syntax; we explore the "why" behind modern patterns, including functional programming, the Event Loop, and the latest features in ES2025.
By the end of this course, you will have the confidence to build robust, scalable applications using the most up-to-date JavaScript standards.
By covering the core modern language features, essential async patterns, browser interaction, and necessary tooling, this workshop provides the fundamental knowledge and practical skills with JavaScript that serve as a great starting point for further exploration of topics such as TypeScript, backend development with Node.js, and popular frameworks like React and Angular.
Instructor-led online and in-house face-to-face options are available - as part of a wider customised training programme, or as a standalone workshop, on-site at your offices or at one of many flexible meeting spaces in the UK and around the World.
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- Master the core syntax of Modern JS (let/const, arrow functions, destructuring, and spread/rest operators).
- Understand the internals of the JavaScript Engine and the Event Loop to write non-blocking code.
- Manage complex asynchronous workflows using Promises, Async/Await, and Error Handling.
- Implement modular, maintainable architectures using ES Modules (import/export).
- Utilize Functional Programming patterns including Map, Filter, Reduce, and Immutability.
- Write clean, testable object-oriented code using Classes, Private Fields, and modern Prototypes.
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This 4-day workshop is designed for experienced software developers who are new to the JavaScript language or need to update their skills to Modern ECMAScript (ES6+) for use with contemporary frameworks like React, Angular, or Vue. It is ideal for:
Developers transitioning from other languages (C#, Java, Python etc.) to JavaScript development.
Developers with some older JavaScript experience looking to learn modern practices.
Developers preparing to work with modern front-end frameworks.
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Participants should have:
Solid understanding of programming concepts and experience developing applications in at least one other software development language (e.g., C#, Java, Python, PHP).
Familiarity with web concepts (HTTP, HTML basics) is beneficial.
No prior experience with JavaScript is required, though some prior exposure may be useful.
We can customise the training to match your team's experience and needs - with more time and coverage of fundamentals for new developers, or a swifter pace / focus on specific topics for experienced coders. -
This JavaScript course is available for private / custom delivery for your team - as an in-house face-to-face workshop at your location of choice, or as online instructor-led training via MS Teams (or your own preferred platform).
Get in touch to find out how we can deliver tailored training which focuses on your project requirements and learning goals.
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The modern language foundation
The Evolution of JS: From ES5 to the yearly ECMAScript release cycle.
Variable Scoping: Moving from var to block-scoped let and const.
Arrow Functions: Syntax, lexical this binding, and use cases.
Template Literals: Multi-line strings and expression interpolation.
Enhanced Object Literals: Property shorthands and computed names.
Advanced syntax & destructuring
Object & Array Destructuring: Extracting data efficiently.
Spread & Rest Operators: Merging objects, copying arrays, and handling variable arguments.
Default Parameters: Writing more resilient functions.
The Nullish Coalescing (??) and Optional Chaining (?.) Operators: Handling null/undefined safely.
Asynchronous Programming & the Event Loop
The JavaScript Runtime: Understanding the Stack, Heap, and Callback Queue.
The Event Loop: How JS handles concurrency without threads.
Working with Promises: Chaining, Promise.all, and Promise.allSettled.
Async/Await: Writing asynchronous code that looks synchronous.
Modern Fetch API: Communicating with RESTful APIs and handling JSON.
Functional Programming Patterns
Immutability: Why it matters for modern UI frameworks like React.
Higher-Order Functions: Master map, filter, reduce, find, and every.
Pure Functions: Reducing side effects for easier testing.
Practical Functional JS: Combining array methods to process complex data sets.
Modules and Tooling
ES Modules: Exporting and importing values between files.
Dynamic Imports: Loading code only when needed for performance.
Introduction to the Ecosystem: A high-level look at NPM, Vite, and Webpack.
Transpilation: Why we still use tools like Babel for older browser support.
Modern Classes and Prototypes
Class Syntax: Constructors, methods, and inheritance (extends and super).
Private Class Features: Using # to encapsulate data.
Static Members: Utility methods and properties.
The Prototype Chain: Understanding what happens under the hood of a Class.
Beyond vanilla JS – the modern ecosystem
Node.js: A high-level overview of JavaScript on the server.
The Framework Landscape: Comparing React, Angular, and Vue (when to use which).
TypeScript: Why many teams are moving to "typed" JavaScript.
State Management: Introduction to patterns like Redux and Signals.
Next Steps: Planning your learning path for full-stack or front-end specialization.
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MDN Web Docs (JavaScript Guide and Reference): The comprehensive, canonical resource for JavaScript.
Node.js Documentation: Official documentation for the JavaScript runtime environment.
NPM Documentation: Official documentation for the Node package manager.
Babel Documentation: Official documentation for the popular JavaScript transpiler.
Jest Documentation: Official documentation for a widely used JavaScript testing framework.
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