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Please explain.

I've actually had a pretty good time dealing with Sprockets. There are the occasional deployment issues but the benefits tend to more than make up for any frustrations.

Problems:

(1) Slow

(2) Sprockets' C-style require directives because the people working with ruby don't want to get their hands dirty with crawling the javascript AST and parsing out commonjs or even Harmony-ES module system requires.

(3) Incompatibilities between various JS-focused gems because of sprockets issues. Getting Require.js to work took a long time and then it took a lot longer to get the require.js gem to work with jasmine.js, and even then it ended up being a jerryrigged approach.

In general, sprockets is a mess with respect to Javascript handling versus what you can do in node.js.

It's pretty slow, among other things

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