When comparing JavaScript For Cats vs edX, the Slant community recommends edX for most people. In the question“What are the best resources to learn JavaScript?” edX is ranked 15th while JavaScript For Cats is ranked 29th. The most important reason people chose edX is:
Both edX and the classes are free.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Beginner-friendly
JavaScript For Cats starts by explaining what is a programming language and builds on from there.
Pro Free
Both edX and the classes are free.
Pro Offers courses from well known schools
edX offers courses from a wide range of well known colleges and universities including Harvard, MIT, UC Berkeley, Cornell and more.
Pro Large selection of science courses
edX offers a wide variety of science-related courses. This makes it a great resource for learning not only specific programming languages, but also other topics relating to computer science.
Pro A lot of topics (subjects)
Topics include biology, business, chemistry, computer science, economics, finance, electronics, engineering, food and nutrition, history, humanities, law, literature, math, medicine, music, philosophy, physics, science, statistics and more.
Pro Offer certificates for some courses
Cons
Con It's just a starting point
JavaScript for Cats is a quick introduction to programming, designed to get you acquainted with the basics in the quickest way possible. It is not, however, an in-depth resource that will make you ready to develop production-ready web applications.
Con Lack of engagement in the forums
edX does not have the same forum participation from both students and instructors that other websites do, and the form of engagement often does not encourage discussion.
Con Courses aren't always available
While edX does offer some self-paced courses, you may end up waiting for the course of your choice to be run.
Con The forums are difficult to navigate
The forums are difficult to sort by date and topic, and are unintuitive to navigate.