Jest Course
This course provides hands-on experience with Jest for testing JavaScript applications, covering setup, unit testing, mocking, and best practices for reliable code.

4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
This short, practical Jest Course teaches you how to set up a testing environment, write clear unit tests, and design testable JavaScript modules with immutable APIs. You will practise testing task management logic, date utilities, and time-dependent behaviour using mocks, spies, and timers, then improve test quality with solid structure, coverage, and CI integration for reliable, maintainable code.
Elevify advantages
Develop skills
- Master Jest setup: configure projects, scripts, matchers, and watch mode quickly.
- Test business logic: validate task add, toggle, remove, and filtering with Jest.
- Mock with confidence: use jest.fn, jest.spyOn, and jest.mock for clean tests.
- Test dates reliably: mock Date, timers, and edge cases like leap years and UTC.
- Ship robust code: improve coverage, CI integration, and maintainable test suites.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
Your lessons are perfect. I purchased the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... thank you for everything you do, I've already recommended you to others...

Giulio CarloDigital Marketing Student
I like how the lessons get straight to the point and how I can switch chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the supplementary videos really help with learning.

Giulio CarloPrompt Engineering Student
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