A Perfectly Structured Course
Course Content
4 Hours . 6 Sections . 70 Lessons
A Course You'll Actually Finish
A comprehensive, beginner-friendly guide covering everything from the basics to advanced techniques
Say goodbye to scattered tutorials and endless fluff. This course gives you a clear, structured path with bite-sized videos that blend theory and hands-on practice.
Made with đŠˇ
Mastering JavaScript Unit Testing is designed to equip you with the skills to write maintainable, robust, and valuable unit tests for your JavaScript applications. Whether you're new to unit testing or looking to refine your skills, this course will guide you through the fundamentals and best practices of unit testing, helping you ensure your code is reliable and easy to maintain.
Youâll explore core techniques like positive, negative, and boundary testing to ensure comprehensive test coverage. Youâll also learn how to use mocks to isolate code, create parameterized tests for versatile scenarios, and evaluate code coverage to make sure nothing is missed. Beyond testing, this course will show you how to improve overall code quality using static analysis tools like ESLint and Prettier, prevent type errors with TypeScript, and automate quality checks with Husky.
By the end of this course, youâll have the confidence to create high-quality, well-tested JavaScript code that stands up in production.
Highly Practical
A Perfectly Structured Course
4 Hours . 6 Sections . 70 Lessons
Target Student
A Complete Beginner-Friendly Course
You don't need prior knowledge of unit testing to take this course. However, you should be familiar with modern JavaScript features such as arrow functions, modules, promises, etc.
Your Instructor
Hi! I'm Mosh Hamedani. Iâve spent 20+ years in software engineering, and my goal isnât just to teach you to code â itâs to help you think like a professional software engineer, master problem-solving, and build skills youâll use for life.
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Students taught
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Success Stories
Donât just take my word for itâhear from students who have transformed their skills and careers with this course.
Been recommending Mosh for years... probably a decade by now. I've lost count of how many developers and business people I have shared one of his videos with. Not much to say other than he's one of the best instructors out there. Great personality for teaching and a solid mastery of the subject matter. He's always going to be my first stop for learning something new.
Mosh helped me land a job as as a Mobile software engineer
I'm a self taught software engineer. During this period of study I completed many courses, trying to emulate a computer science education. Mosh's courses helped me all the way and the ones I continue coming back to and referencing as a professional software engineer.
I already held a degree and didn't want to incure the cost of going to college again. I'm also pretty motivated, so Mosh's structured courses worked well for me.
May courses will teach you a framework or technology, but these are highly perishable skills. Mosh will teach you to think like a software engineer and load you with the correct fundamentals that will give you confidence when you get in the workplace.
Thanks for everything Mosh!
The best investment I have ever made
Mosh is an outstanding teacher. His lessons are easy to learn and can be followed at your own pace, making them incredibly convenient. I've been learning from him for over four years, and the growth in my professional career has been remarkable. It's totally worth it. I am incredibly thankful to have found him.
Mosh comes up with the best, well-structured and informative courses as always. I have seen most of his YouTube videos in his channel and he is the main reason I fell in love with programming. Mosh not only teaches you the concepts, but also points out what it takes to be a professional developer that makes one stand out. I highly recommend his courses to all.
Thank you so much, Mosh
Mosh never ceases to amaze me. His courses are always top-notch. Mosh manages to teach complex things easily. Thanks to his React course, I became a programmer and got my first job. If you want to learn from the best, you should choose Mosh as your mentor.
Stop wasting time on long, bloated courses and scattered tutorials. Here, youâll get concise, focused lessons that give you real skills without wasting your time. Enroll now and start right away.
30-Day Money-Back Guarantee
Join risk-free â Cancel anytime!
Iâm confident youâll love this course. But if itâs not the right fit, no worries! Get a refund within 30 days â no questions asked.
Need More Details?
Does this course cover testing React apps?
No, this course primarily focuses on foundational unit testing principles and best practices that are often overlooked and miss from other courses. I believe that mastering these fundamentals is essential before diving into testing React apps. I'm actively developing a separate course dedicated to testing React apps, which will cover advanced techniques like testing components, forms, authentication, state management, and routing. Completing 'Mastering JavaScript Unit Testing' will set you up for success in my upcoming React testing course.
Will I get 'Testing React Apps' for free if I enroll in this course?
Unfortunately not! That's an entirely separate course that you need to purchase if you're interested. You may also consider buying a subscription to get access to all the courses in the library.
Does this course use Jest?
In this course, we'll use Vitest, which is a better alternative to Jest as it's built from the ground up for modern JavaScript apps. All the concepts you'll learn in this course will directly transfer to Jest.
How is this course different from YouTube tutorials?
Crystal clear and straight to the point, each lesson is concise and packed with 20 years of software engineering experience. No ramblingâjust a perfectly structured path to help you really understand and build your skills.
Whatâs the difference between buying a course and subscribing?
Buying the course gives you lifetime access to this specific course with a one-time payment. Subscribing, on the other hand, grants you access to this course along with the entire course library for as long as your subscription is active. Subscriptions also include new courses added in the future.
How long will I have access to the course?
If you purchase this course, youâll have lifetime access, allowing you to revisit lessons and resources anytime. If you subscribe, youâll have access to this course and all others in the library as long as your subscription is active.
Is there a money-back guarantee?
Yes, thereâs a 30-day money-back guarantee. If you find the course isnât a good fit, you can request a refund within the first 30 days.
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