Hi HN!<p>I have a father-in-law who teaches robotics classes to elementary-school-aged children.<p>Recently, he's started getting involved in MIT's AppInventor to build mobile apps. These mobile apps support web views, which means he's started learning Javascript.<p>To make these classes possible, he buys bulk used Android phones, for like $3 a piece. Often they are several years old.<p>I'm a JS dev by trade, but the work I do feels pretty far removed from this stuff. I certainly don't think it makes sense to teach him about webpack/babel/react/etc.<p>For Christmas this year I'd like to get him a book of some kind that teaches ES5 JS. Ideally, it wouldn't just be the 2013-edition of some current book; JS has trended in recent years towards a mix of OOP and functional programming. What I'd like is a book written for the modern dev who needs to support old devices and who doesn't want to set up a transpiler/bundler.<p>I have no idea if such a book exists, but would love recommendations! Happy with other formats as well (online courses, whatever).