This was my reaction upon reading the title of the post, having not used TypeScript. Mostly based on my experience and frustration with CoffeScript, mainly fru

This was my reaction upon reading the title of the post, having not used TypeScript. Mostly based on my experience and frustration with CoffeScript, mainly frustration at its existence. But if TypeScript is an abstraction of Javascript that adds type security, then I'm pretty much all for it, even having been burned pretty often by unnecessary abstraction. I would say that the lion's share of my own javascript bugs spring from type uncertainty.