Welcome to Lesson 4! There are two main parts to JavaScript: the syntax of the language and its library of objects. In Lesson 2, which was an introduction to the syntax, we looked into variables ...

Eloquent JavaScript is actually a computer science book but it’s available on the web for free. And the web version contains interactive lessons that can be completed from within the browser.

Overview JavaScript certifications can validate your skills and improve job prospects.The best JavaScript courses in 2025 ...

Around 200 developers have been in touch with Codecademy about adding their own content and lessons to the site. Sims said learners can expect more Javascript lessons first.