I like PureScript a whole lot. Something that ClojureScript and Reason seem to have on PureScript is really efficient persistent structures being the default, a

I like PureScript a whole lot. Something that ClojureScript and Reason seem to have on PureScript is really efficient persistent structures being the default, at least if I remember correctly. It's been a while, but I seem to recall PureScript giving me nice, functional syntax that under the hood did lots of native JS object / array copies.