428149 (29) [Avatar] Offline
I'm surprised that a book coming out in 2017 mentions jQuery. I realise that some people are still using this library; however, this does rather date the book, unfortunately.

Conversely, there is no mention of SPAs built using modern frameworks such as React. SPAs create a much faster and more modern user-experience, but add the problem of a larger initial download. The pros and cons of SPAs vs traditional serve-rendered applications should be discussed, as should solutions such as universal applications and tree-shaking.