Civet is described as a kind of modern CoffeeScript for TypeScript, which may not sound promising if you remember CoffeeScript as I do. Before you write it off, though, consider what Civet has to ...

CoffeeScript, which attempts to make it easier to program in JavaScript, has a newly released beta version that features ECMAScript 2015+ support. The currently downloadable 2.0 beta offers ES2015 ...