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Re:An erroneous paper on religion and generosity is retracted by ars on Friday September 27, 2019 @04:30PM (#21095985)
> If my program ever treats a zip code like a number I would like it to throw an error.

One interesting thing you can do though, is sort by zipcode. This sorts your mail from East to West in the US. You can use that as a rough estimate of shipping time.

Re:An erroneous paper on religion and generosity is retracted by _edo on Friday September 27, 2019 @04:52PM (#21096163)
That's really cool, even if I never find a place to use it.

Anyway you can still sort strings.

Re:An erroneous paper on religion and generosity is retracted by LorenPechtel on Friday September 27, 2019 @04:46PM (#21096110)
So? You make sure the zip code is left zero filled and the strings sort fine. Admittedly, numbers would sort a bit faster.