How to change the position of an array element?

Question

I have a question on how I can change the index of a array element, so that it doesn\'t come at the 7. position but at position 2 instead...

Is there a function to h

Answer 1

Isn't better to use:

irb> a = [2,5,4,6]
#=> [2, 5, 4, 6]
irb> a.insert(1, a.pop)
#=> [2, 6, 5, 4]

?