Loop through array elements

Question

Loop through array elements

I would like to cycle @aon 0to 2: 0, 1, 2, 0, 1, 2.

def set_a
  if @a == 2 
    @a = 0
  else
    @a = @a + 1
  end
end

Maybe there is a better way?

+5

ruby

chief May 29 '12 at 2:43

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1 answer

megas · Accepted Answer · 2012-05-29T02:59:34+0000

(0..2).cycle(3) { |x| puts x } #=> 0,1,2,0,1,2,0,1,2

item = [0, 1, 2].cycle.each

item.next #=> 0
item.next #=> 1
item.next #=> 2
item.next #=> 0
...

Loop through array elements

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