checking for the existence of Buffer causes it to exist

Some modules check for the existence of Buffer but don’t require it to work. Because the identifier Buffer is seen by browserify, it becomes bundled. Buffer addes quite a lot of code to a bundle that often isn’t needed. (About 40kB)

An example of this is if you require clone, which checks if Buffer exists, and therefore causes it to be added to a browserified bundle.

It would be handy to be able to explicitly tag that your module does not require Buffer in the package.json (even if you use the Buffer identifier in your source) to allow for it to be not added if possible.

[ghost]

I’m in favor of adding a special check for Buffer.isBuffer() that doesn’t include all of Buffer. This should live in insert-module-globals.

[hossain5630]

Very nice