This is where most beginners cry. Callbacks, promises, async/await, and the event loop. Jonas uses a visual breakdown (the "Behind the Scenes" section) that makes the impossible click. If you have tried to learn Fetch API and failed, this section alone is worth the price of the course.
Don’t let the date scare you. JavaScript ES6 (ECMAScript 2015) was the massive upgrade that changed everything. The 2020 version of this course caught the tail end of that standardization. The syntax taught— let , const , arrow functions, promises, modules, and classes—is modern JavaScript. You will not be learning dead code. You will be learning the same vanilla JS used by React, Vue, and Node today.
If you are starting today, buy the course when it is on sale (which is always). Ignore the date. Write the code. Build the Pig Game. You will be a better developer than 80% of the people who jumped straight to a framework. This is where most beginners cry
Is the famous "Complete JavaScript Course 2020" still relevant in 2026? We review the projects, the teaching style, and why the Pig Game is still the best way to learn DOM manipulation.
Title: Why ‘The Complete JavaScript Course 2020: Build Real Projects!’ is Still Worth Your Time (Even Years Later) If you have tried to learn Fetch API
While the recording is from 2020, Jonas is famous for updating his course materials. He added a massive Node.js/Forkify section (a recipe search app) that uses modern tooling (Webpack, NPM, API calls). Even today, that project teaches you exactly how real development teams structure their files.
If you are diving into the world of web development, you have probably seen it mentioned in every Reddit thread and YouTube comment section: Jonas Schmedtmann’s The Complete JavaScript Course 2020: Build Real Projects! on Udemy. The 2020 version of this course caught the
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