Recommended approach for globally setting undefined

First off, thank you for this helpful package!

Using Babel, undefined is scoped to the module that I import it in, but I want undefined to be a function for my entire site. My current approach is:

import { undefined as undef } from 'undefined-is-a-function';

undefined = undef;

If this is a common use case would you consider adding a utility method?

[aarongodin]

Following the single-responsibility principle, we should probably create a new package on npm called undefined-is-always-a-function. This package already has enough code in it. We wouldn’t want our complexity to go up too much.

[jackjocross]

@maniator I was thinking the same, maybe a webpack plugin or babel transform that defines undefined as a function in each module.