The worst JavaScript feature is also arguably its best. It is a remarkably ubiquitous language that has had to grow and adapt at a very fast rate. The language itself and its position within browser have precipitated this ubiquity.
JavaScript is an incredibly expressive and diverse language, with functional inspiration from Lisp and Scheme, prototypical inheritance from Self, and a C-like syntax that mirrors Java. It is a language of many paradigms. Whether you want to program in a classically object-oriented way, a prototypical way, or an entirely functional way, JavaScript has you covered. JavaScript's flexibility and its position in the broader web stack also make it incredibly accommodating to beginners. You can be immediately productive with it, and this was very much Brendan Eich's original intention. It was intended to be easy to...
