[bjourne]

Not quite. The following shows what doesn't work:

    (def $ js/jQuery)
    (.each ($ "body") (fn [idx, val]
                        (.write js/document "In a lambda")))

The Google Closure Compiler munges names of functions so that any function declared in ClojureScript cannot be called from jQuery which means that no jQuery function that takes a callback can be used. And you really want to use GCC because without its dead code removal a simple helloworld.js file takes more than 700kb.

[swannodette]

You just need to compile your ClojureScript with the popular jQuery externs file.

[jwhitlark]

You can mark things so that their names aren't mudged via ^:export.