JavaScript quizz array

main.js

quiz([11, 9, 6, 11, 5], 3);             // output: 26, 16
quiz([11, 9, 6, 11, 5, 1], 3);          // output: 26, 17
quiz([11, 9, 6, 11, 5, 1, 1], 3);       // output: 26, 17, 1
quiz([1, 2, 1, 3, 1, 4, 1, 5, 1], 2);   // output: 3, 4, 5, 6, 1


// quiz sums every n elements of arr and print.
// also print the sum of any remaining elements
function quiz(arr, n) {
  let response = [];
  const reducer = (accumulator, currentValue) => accumulator + currentValue;
  
  for (let i = 0; i < arr.length; i += n) {
    let chunk = arr.slice(i, i + n);    // breaks in parts
    response.push(chunk.reduce(reducer));   // sums the parts, and adds to the array
  }
  
 
  console.log(response);
}