The uCertify JavaScript study guide contains vocabularies, which has digital index cards and you can flip over for definitions. You can also watch videos for understanding the basics, and the text is pretty high in dense, so there's a lot you can learn from. And it's all in easy English, nothing complicated like some of the books you'll find out there.

I loved the platform because it was easy to use. The chapters are so well-designed to provide you a complete understanding of all the aspects of JavaScript. The chapters contain knowledge checks and flashcards for testing the knowledge gained in the chapters.

had the opportunity to test for a few days uCertify CIW: JavaScript Specialist v2.0 course, which helps you to be ready to take the exam. It turns out that the uCertify course was a really great alternative for mastering Javascript, this course has videos, cards, quizzes, good lessons and well explained. Going through the lessons and its content I recalled important concept like DOM manipulation.