I’ve been using vi and vim a lot more since I started work at my present company, and must say that while initially I thought that the only people who would enjoy using it were sadists, it has started to grow on me.
Recently, I came across a link to an online version of vi, known as jsvi, which as one can probably guess is written in javascript. It’s a pretty faithful imitation of the command line editor, with the added bonus of a spell checker. If you have some spare time, you should really check it out.
Source Lifehacker
