When comparing Team Treehouse JavaScript vs exercism.org, the Slant community recommends exercism.org for most people. In the question“What are the best resources to learn JavaScript?” exercism.org is ranked 3rd while Team Treehouse JavaScript is ranked 12th. The most important reason people chose exercism.org is:
Rather than merely test for code correctness, Exercism uses peer review to improve general programming techniques. Users are encouraged to comment on others' solutions, and refine their own based on feedback.
Specs
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Pros
Pro Short videos
The short, engaging videos that TreeHouse provides for all of their courses make it easy to stay focused and absorb what is being taught. The short video lengths will help keep you from getting discouraged at the amount of material to be covered.
Pro Build projects as you learn
The JavaScript courses (and JavaScript related courses, such as jQuery) take the students through building various projects, such as lightboxes and web apps.
Pro Covers different libraries and resources in addition to plain JavaScript
Treehouse offers well over a hundred courses and the list is growing quickly. This means that not only can you learn JavaScript with Treehouse, but they also provide courses for a variety of libraries and frameworks (such as jQuery, Node.jS, Angular.jS, and more).
Pro Challenges for keeping the user engaged
Treehouse provides coding challenges throughout the courses. You code directly in their editor, and your code is checked to make sure it's correct.
Pro iOS and Android app
Treeehouse provides an app for both iOS and Android that is easy to use.
Pro Human review and feedback
Rather than merely test for code correctness, Exercism uses peer review to improve general programming techniques. Users are encouraged to comment on others' solutions, and refine their own based on feedback.
Pro Practice with production tools
Unlike many code practice websites, Exercism requires the user to develop and test entirely offline, submitting only the finished code. This promotes familiarity with essential tools and workflow, not just the bare language.
Cons
Con Credit card required to sign up for the free trial
Treehouse offers a free 14-day trial, but requires a credit card to sign up.
Con The forum lacks conversation/engagement
TreeHouse provides a a forum for students to have discussions. However almost all posts are students looking for answers to the quizzes and challenges. Any attempts at general discussions about business, learning, programming, job seeking etc. tend to go without replies.
Con Custom commandline client
Exercism requires using a CLI utility to fetch and submit exercises. This is inconvenient compared to web-only alternatives, and poses an additional barrier to entry for some users.