my FreeCodeCamp Basic Algorithm Scripting, Chunky Monkey

E.js

function chunkArrayInGroups(arr, size) {
  var newArray = [];
  for (let i = 0; i<arr.length; i++) {
    // console.log(i)
    if (i == 0) {
      newArray.push(arr.slice(i, size ))
    }else if (i % size == 0 && i != 0) {
      // console.log('HEY!')
      // console.log(arr[i])
      // console.log(arr.indexOf(arr[i]))
      let x = arr.indexOf(arr[i])
      console.log(x)
      x = arr.slice(x, x + size)
      newArray.push(x)
    }
  }
  return newArray;
}

console.log(chunkArrayInGroups([0, 1, 2, 3, 4, 5, 6, 7, 8], 4));