Coffeescript is good in itself, I like the sugar it slaps on top of Javascript, but the real productivity improvement in my opinion is Underscore.js/LoDash, tha

Coffeescript is good in itself, I like the sugar it slaps on top of Javascript, but the real productivity improvement in my opinion is Underscore.js/LoDash, that's what really makes programming in Javascript/Coffeescript SO much nicer in my experience.