In regards to the book's online version, I like how it has code examples that one can edit and run inline among the book's text. I often find myself, while reading a book on a particular language, opening up a new project in an IDE or a REPL in order to fiddle around with what the book it trying to teach. This makes it much more fluid.
It was a pleasant surprise. It is a nice concept I have not previously seen done. (I'm sure someone can come up with examples of where it has previously been done before but this is the first I personally have seen it.)
It was a pleasant surprise. It is a nice concept I have not previously seen done. (I'm sure someone can come up with examples of where it has previously been done before but this is the first I personally have seen it.)