[Xt-6]

They can do it, it is just turned off by default and require more advanced configuration.

https://github.com/terser/terser#cli-mangling-property-names...

[jitl]

I don’t know any codebase that’s enabled these kinds of transforms because the compiler doesn’t know if a type’s properties will be introspected or iterated, so the transform is likely to break at runtime