ls and find return objects (e.g. { 'file1':null, 'dir1/file2':null, ...}), supposedly for convenience. Sure, it's nice when you're doing a for in, but I'm not sure why you would. This is V8 we're talking about, why not use arrays since we have access to the full set of ES5 iteration and accessor methods? (e.g. forEach, filter, map, reduce, indexOf)

I'd be happy to submit a pull request if there is a desire for one :)