Empresa engajada
The interview followed a standard format, where an input was given, and certain outputs expected. The inputs were presented in a file on the disk. As a javascript engineer, this was awkward, as javascript is rarely used to read/write directly to the hard drive. Due to NDA, I cannot disclose the specifics of the question itself.
Sigiloso
I explained that although the challenge ideally required writing to/from disk for a "perfect solution", Javascript typically gets it's data input via HTTP, and displays its output via the browser, so that was how I would proceed with my solution.