JavaScript - The Complete Guide 2025 (Beginner + Advanced)
What you'll learn
- Learn JavaScript from scratch and in great detail - from beginner to advanced
- All core features and concepts you need to know in modern JavaScript development
- Everything you need to become a JavaScript expert and apply for JavaScript jobs
- Project-driven learning with plenty of examples
- All about variables, functions, objects and arrays
- Object-oriented programming
- Deep dives into prototypes, JavaScript engines & how it works behind the scenes
- Manipulating web pages (= the DOM) with JavaScript
- Event handling, asynchronous coding and Http requests
- Meta-programming, performance optimization, memory leak busting
- Testing, security and deployment
- And so much more!
Requirements
- NO prior JavaScript knowledge is required
- Basic web development knowledge is recommended
- Basic understanding of HTML and CSS helps but is NOT required
Description
Join the most comprehensive and in-depth JavaScript course on Udemy and learn JavaScript from the ground up, in great detail with this bestselling course!
JavaScript is THE most important programming language you need to learn as a web developer - and with this course, you make sure that you will not miss a single thing you have to know as a JavaScript developer!
This is the most comprehensive and modern course you can find on JavaScript - it's based on all my JavaScript knowledge AND teaching experience. It's both a complete guide, starting with the core basics of the language, as well as an extensive reference of the JavaScript language and environment, ensuring that both newcomers as well as experienced JavaScript developers get a lot out of this course!
It's a huge course packed with important knowledge and helpful content:
From the core basics, over advanced concepts and JavaScript specialties, all the way up to expert topics like performance optimization and testing - this course has it all. My goal was to create your go-to resource for the JavaScript language, which you can not just use for learning it but also as a resource you can come back to and look up important topics.
The course is based on my experience as a long-term JavaScript developer as well as a teacher with more than 2,500,000 students on Udemy as well as on my YouTube channel Academind. It's packed with examples, demos, projects, assignments, quizzes and of course videos - all with the goal of giving you the best possible way of learning JavaScript.
What's in the course?
This course is obviously packed with content - I therefore strongly recommend that you check out the full course curriculum to get a clear idea of all the topics covered in the course. In general, here's what you'll find in the course:
Modern JavaScript from the start: The JavaScript syntax changed over time - in this course, you'll learn the latest syntax from the start (you'll also learn about the old one though, so that you can work in ANY JS project)
ALL the Basics: Variables, constants, functions, how scripts are loaded etc
Arrays & Objects: We'll explore these very important data structures in great detail
Control Structures: Understand how to run code conditionally and in loops
A look behind the Scenes: How JavaScript engines work behind the scenes and what that means for us
Deep dives into Core Concepts: ALL the special things about JavaScript function, different syntaxes
Working with the DOM: How to manipulate web pages dynamically via JavaScript (including deep dives and different use-cases)
Events in JavaScript: Learn how to listen to a broad variety of events (e.g. drag & drop) and execute appropriate code
Classes & Object-oriented Programming: Learn how to work with classes, prototypes, the "this" keyword, constructor functions and much more
Asynchronous and Synchronous Programming: We'll explore callbacks, promises, async/ await and other important tools and language features to execute code correctly
Http Requests: Learn how to send Http requests via JavaScript
Tooling, Optimizations & Browser Support: Code splitting, producing small code and ensuring that scripts work in all browsers - this matters and hence is covered in great detail
Libraries & Frameworks: Learn about libraries like Axios or frameworks like React.js - why they matter and how to use them
Node.js: Whilst focusing on the browser-side for the majority of the course (because the syntax is the same), we'll also have a dedicated section on Node.js to learn all about that JS host environment
Security & Performance Optimizations: Of course security matters, so does performance - no surprise that both is covered in the course!
Automated Testing: Testing manually is hard work and can be unreliable - in this course you'll also get an introduction into automated testing
What are the course prerequisites?
NO JavaScript knowledge is required - you'll learn it from scratch!
You also need NO programming experience other than basic web development knowledge (e.g. how the web works)
Basic HTML and CSS knowledge is recommended but not a must-have
Who this course is for:
- Beginner web development students who have no or only little JavaScript experience
- Also developers who know the basics about JavaScript and want to deepen their knowledge
- Advanced JavaScript developers who want to learn more about the nitty-gritty details and dive into advanced concepts
- Everyone interested in learning JavaScript and all about how it works
Featured review
Instructors
- 4.6 Instructor Rating
- 796,068 Reviews
- 3,313,904 Students
- 48 Courses
Bundling the courses and know how of successful instructors, Academind strives to deliver high quality online education.
Online Education, Real-Life Success - that's what Academind stands for. Learn topics like web development, data analyses and more in a fun and engaging way.
We've taught more than 3,000,000 students on a broad variety of topics. We'd love to teach you as well! :)
Keep learning!
- 4.7 Instructor Rating
- 1,222,324 Reviews
- 3,352,338 Students
- 65 Courses
Experience as (Web) Developer
Starting out at the age of 12 I never stopped learning new programming skills and languages. Early I started creating websites for friends and just for fun as well. Besides web development I also explored Python and other non-web-only languages. This passion has since lasted and lead to my decision of working as a freelance web developer and consultant. The success and fun I have in this job is immense and really keeps that passion burningly alive.
Starting web development on the backend (PHP with Laravel, NodeJS, Python) I also became more and more of a frontend developer using modern frameworks like React, Angular or VueJS in a lot of projects. I love both worlds nowadays!
I also build full-stack applications and acquired expert DevOps and cloud computing knowledge - proven by the many AWS certifications I hold (incl. the top-level Solutions Architect Professional certification).
As a self-taught developer I had the chance to broaden my horizon by studying Business Administration where I hold a Master's degree. That enabled me to work in a major strategy consultancy as well as a bank. While learning, that I enjoy development more than these fields, the time in this sector greatly improved my overall experience and skills.
Experience as Instructor
As a self-taught professional I really know the hard parts and the difficult topics when learning new or improving on already-known languages. This background and experience enables me to focus on the most relevant key concepts and topics. My track record of many 5-star rated courses and more than 2,000,000 students on Udemy is the best proof for that.
Whether working as development instructor or teaching Business Administration I always received great feedback. The most rewarding experience is to see how people find new, better jobs, build awesome web applications, acquire amazing projects or simply enjoy their hobby with the help of my content.
Together with Manuel Lorenz, I founded Academind to offer the best possible learning experience to our more than 2,000,000 students.