如何在JavaScript中数组的数组中执行不区分大小写？

function caseInsensitiveComparison(a, b) {
  const strA = a.toString().toLowerCase();
  const strB = b.toString().toLowerCase();
  
  if (strA < strB) {
    return -1;
  } else if (strA > strB) {
    return 1;
  } else {
    return 0;
  }
}

const arrayOfArrays = [
  ['apple', 'Banana'],
  ['orange', 'Pineapple'],
  ['kiwi', 'MANGO']
];

arrayOfArrays.sort(caseInsensitiveComparison);

console.log(arrayOfArrays);