I don't agree either. The first part of the argumentation is indeed based on the author's feelings. The second part I don't think is an issue for most real wor

I don't agree either. The first part of the argumentation is indeed based on the author's feelings. The second part I don't think is an issue for most real world use-cases (Objects, Strings and, to a lesser extent, Numbers). On the underscore (_.defaults) recommendation: let's set our goals straight [1]. Aim for a good level of JavaScript understanding. Instead of library knowledge to make up for the lack of the former. [1] https://www.youtube.com/watch?v=4anAwXYqLG8 https://www.youtube.com/watch?v=4anAwXYqLG8