I use js compilation (CoffeeScript, Browserify, React JSX, etc) and it is definitely worth the extra layer. I have a setup with Gulp[0] that watches my files fo

I use js compilation (CoffeeScript, Browserify, React JSX, etc) and it is definitely worth the extra layer. I have a setup with Gulp[0] that watches my files for changes, compiles, and then LiveReload[1] automatically refreshes my browser window, so I never have to leave my editor for non-interactive changes. CoffeeScript compilation with gulp-coffee is usually on the order of a few hundred ms, and I'd expect SweetJS to be the same. [0]: http://gulpjs.com http://gulpjs.com [1]: http://livereload.com/ http://livereload.com/ (I use free, OSS command line versions, not the paid OS X app)