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1. muesli (fribbledom@mastodon.social)'s status on Wednesday, 22-May-2019 01:07:36 UTC muesli

   #golang pop quiz: what does this code print out?

   s := strings.Split("", "@") fmt.Println(len(s))

   [ ] 0
   [ ] 1
   [ ] Undefined output

   • muesli (fribbledom@mastodon.social)'s status on Thursday, 23-May-2019 04:35:02 UTC muesli

     in reply to

     Sounds like most of you are aware of strings.Split's behavior, and it is well documented, too:

     "If s does not contain sep and sep is not empty, Split returns a slice of length 1 whose only element is s."

     So if s was an empty string, that would be the only element in the returned list.

     However, it still seems a bit unintuitive to me. I keep noticing how often people expect it to return an empty slice, which leads to issues that can be tricky to debug at times.