text: //Write a function that splits an array (first argument) into groups the length of size (second argument) and returns them as a two-dimensional array.
  function arrayToGroup( arr, size ) {
    let newarray = [];
    while ( arr.length ) {
      newarray.push( arr.splice( 0, size ) )
    }
    return newarray
  }
  console.log( arrayToGroup( [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ], 2 ) )
  
  
  //create a var newarray ie an empty array
  //while loop loops until the length of arr is 0
  //For each iteration splice method deletes the size number of elements and push to the newarray
  //Finally newarray is returned
  