From: John Kaurin <jkaurin@...>
Date: 2001-04-10T12:40:14+09:00
Subject: [ruby-talk:13589] All In A Row?

I thought I saw something like this in my early readings on Ruby, but I
cannot find it now.

Is there a Ruby method for arrays that will determine if all of the elements
are in a sequence?

Something like:

[1, 2, 3, 4].sequence? -> true
[1, 3, 4, 5].sequence? -> false

["a", "b", "c", "d"].sequence? -> true
["a", "c", "d", "e"].sequence? -> false

Maybe extrapolated to take an argument:

[1, 3, 5, 7].sequence?(2) -> true
[1, 5, 7, 9].sequence?(2) -> false

["a", "c", "e", "g"].sequence?(2) -> true
["a", "e", "g", "i"].sequence?(2) -> false

Thanks in advance.