Condense Array Recursion

//08. Condense Array to Number
///11 Arrays/08. Condense Array to Number.js
function condenseArrayToNumber(originalArr) {
  'use strict'

  let nums = originalArr

  while (nums.length > 1) {
    let condensed = Array(nums.length - 1);
    for (let i = 0; i < nums.length - 1; i++) {
      condensed[i] = +nums[i] + +nums[i + 1];
    }
    nums = condensed;
  }
  console.log(nums[0])
}
//Рекурсия
function condenseArrayToNumber0(originalArr) {
  'use strict'

  let nums = originalArr

  if (nums.length === 1) {
    console.log(nums[0])
    return
  }
  for (let i = 0; i < nums.length - 1; i++) {
    nums[i] = Number(nums[i]) + Number(nums[i + 1])
  }
  nums.pop()
  condenseArrayToNumber0(nums)
}
condenseArrayToNumber([1,2,3])