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I'm not sure if there are any technical hurdles in adding requiring-resolve to ClojureScript, but it would be nice to have parity so REPL utilities can be written using it.
ClojureScript needs namespaces to be static and they also need to be statically required in the ns form. That technical limitation probably prevents requiring-resolve to work in ClojureScript, although in some environments it might works, such as self-hosted ClojureScript.