On Red Gitter, it was discussed "which of the following is 'correct'":
Red> split "" ","
== [""]
R3> split "" ","
== []
Rebolek thinks R3 is right. Boris says:
I don't think there's a correct answer, just choices. I prefer the Red version because:
it strictly follows the rule: `number-of-segments = 1 + number-of-delimiters", no exceptions, so it's easier to reason aboutit should be able thus to preserve the type in case one wants to rejoin it later (that it doesn't is a bug, try split %"" ",")
So there's a couple of ways to look at it.
But I have a philosophy about these things where I want edge cases to be "noisy", because usually they require special handling. I might even say:
>> split "" ","
== ~null~ ; isotope