How do you merge consecutive repeating elements in an array?

Question

I need to merge consecutive repeating elements in an array, such that

[1, 2, 2, 3, 1]

becomes

[1, 2, 3, 1]

<

Answer 1

does !uniq not work for what you are doing?

http://ruby-doc.org/docs/ProgrammingRuby/html/ref_c_array.html