Google Closure is still best in class at DCE and cross-module motion, but it's never caught on with the larger web community, partly because it applied certain

Google Closure is still best in class at DCE and cross-module motion, but it's never caught on with the larger web community, partly because it applied certain constraints to your Js code that weren't always met. This has changed a bit with modern Closure better able to consume npm modules, but AFAIK, the only heavy non-Google user is still ClojureScript.