he/him 
The way 99% of the population use CJS, is static. If you use webpack or parcel, the only way they can work is if your requires are static.
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Common misconception: ES Modules are required to do scope hoisting and static analysis.
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You can also easily remove function wrappers from CJS modules by rewriting all local variables, constructing export objects and rewriting all local variables to refer to it, and compile anything else that requires() the file to refer to that object.
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Then you can do an optimizing pass to kill the object completely if it's never introspected. eg. you only ever refer to the object properties and never pass the bare reference around.
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Yep.
@parceljs supports tree shaking CommonJS too!
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Nice! I actually looked into it when I was playing around with bundling. Stopped looking when I noticed it used Babel which is pretty fragile, especially when you're doing binding renaming. How have you found the stability? Any patterns in particular you found hard to transform?
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Not sure if this applies completely to ^^, but I’ve always thought common-shake was an interesting project - https://github.com/indutny/common-shake …
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