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Re:Show HN: JSONlite – A simple, serverless, zero-configurat... by sz4kerto on Sunday February 12, 2017 @12:13PM (#13629275)
I would not let anyone close to the code I'm working on if he wanted to verify whether a properly generated UUID clashes with some previously generated UUID.

You could just as do stuff like "int x=1; assert(x == 1);" and so on. And it would be just as futile.

Re:Show HN: JSONlite – A simple, serverless, zero-configurat... by CJefferson on Sunday February 12, 2017 @12:18PM (#13629298)
In this case, you are relying on what installed program or function is called when you invoke uuid in the shell. It seems reasonable to me to check if it is having sensibly, if the reliability of your program counts on it. I have no idea what dodgy uuid programs you might find installed.