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Review of Mozilla Developer Network powered by the Slant community.
SpecsUpdate
LicenseCC-BY-SA
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free & open source
Pro Step by step learning on the ins and outs of JavaScript
Pro Close to first-hand information
The best information sources are the W3C, JavaScript, Golang etc. specs, but they are too hard to read. All these videos (Lynda, Udemy, mail.ru, etc.) and articles may and do contain outdated and sometimes incorrect information.
Cons
Con No exercises to work with
Commonly Compared
Mozilla Developer Network
vs