Comment on Node.js BlueprintsparentComments−JoshTheGeek12y3 and 4 are similar enough, and the wiki has a porting guide, so it shouldn't make much of a difference. Besides, 4 is probably too new to have a book, anyways.
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3 and 4 are similar enough, and the wiki has a porting guide, so it shouldn't make much of a difference. Besides, 4 is probably too new to have a book, anyways.