I said "could" because you'd have to either do a limited scramble or hotwire ls to use the right order despite the scrambling. Or sort by date or inode, probably.
> The key thing here is that the trick works by storing the information of how the blobs are ordered out-of-band.
Yes. That is the key, not the filenames.
> In the OP, that out-of-band place to store the blob order is filename.
It is, but the actual use of filenames is not a shenanigan, and the blob order could be easily accomplished without any particular filenames.
> In your JS example of `[...s].join('5')`, where does the order of [...s] come from? It's not something you can hand-wave away, it's the key thing that makes the trick work.
It comes from the process of loading the blobs onto the computer. I'm not trying to hand-wave it, I'm saying it doesn't need filenames or anything resembling filenames. Maybe it came from a tar. Maybe I sent each file in a separate email. All that matters is having an order, and having an order happens by default when you have multiple files. As long as you don't go out of your way to reorder things, the trick works.