If you're just starting to learn - this can get you introduced to basic concepts. I'd describe it as coding on training wheels.
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Salman Khan's a great teacher. introduction to fundamental CS concepts
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$, http://www.lynda.com/JavaScript-training-tutorials/244-0.html
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They provide an excellent list of common terms you'll hear in any programming/web development conversation. Very easy to understand definitions!
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beginner tutorials, interactive code tool, reference material, NOT assoc with w3.org standards body, some don't like it but it is a popular resource with good basic info for "getting started", it's FREE and also has the same for many other dev subjects
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FREE VIDEO TUTORIAL series that covers javascript fundamentals for absolute beginners in 22 seperate lessons, hosted on microsofts channel 9
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