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qappleh avatar qappleh commented on May 13, 2024
function poke(arr) {
  let i = 1
  let out = []
  while (arr.length) {
    if (i % 2) {
      out.push(arr.shift())
    } else {
      arr.push(arr.shift())
    }
    i++
  }
  return out
}   
    

function reverse(arr) {
  let i = 1
  let out = []
  while (arr.length) {
    if (i % 2) {
      out.unshift(arr.pop())
    } else {
      out.unshift(out.pop())
    }
    i++
  }
  return out
}

reverse([1,2,3,4,5,6,7,8,9,10,11,12,13 ])
// [1, 12, 2, 8, 3, 11, 4, 9, 5, 13, 6, 10, 7]  

from interview.

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