It's a great book but one has to note that not everything there is "how things should be done" these days, Crockford himself has changed his mind on some of the

It's a great book but one has to note that not everything there is "how things should be done" these days, Crockford himself has changed his mind on some of the things he wrote there. Take this as for example: http://www.bolinfest.com/javascript/inheritance.php http://www.bolinfest.com/javascript/inheritance.php or that the book advocates extending native objects (including "Object").