bbatsov/prelude — pull request #629 by toctan (2014-07-30 13:33:37+00:00)
Title: Toggle comment on current line easily.

This functionality is present in almost every modern editors and IDEs, textmate, sublime for example, the conventional key binding is s-/. It's so ubiquitous that online websites like JSBin, JSFiddle has this shortcut build in their code editors. I have brought this up in #332 and recently someone else argues the same #600.

Since s-/ is already bound to `hippie-expand`, I think s-; is also a good key binding, it's quite similar to the binding of `comment-dwim` M-;.