You don't say what other programming experience you have but I'll assume not much.
In a way previous experience of languages like C, C++, Java or C# will both help and hinder you - help because the individual commands/statements are very similar; a hindrance because Javascript is actually a very different beast from the above languages. This can be seen in a lot of rather poor examples on the web from five or ten years ago that are still being promoted as the way to do things.
Unless you are a natural (and very few are) and just "get it" then a period of learning is in order. Either work through the examples in the book (I don't know what it is like) or think up a project of your own and put things together, searching for help at each sticking point.
Not everyone picks things like programming concepts up in the same way so a particular book that works for me might not work for you and vice versa.
I know it hasn't explicitly answered your question but hope it helps anyway.