如何在向javascript中的目标数相加的唯一整型数组中查找元组

function findTuple(target, arr, tupleLength) {
  const result = [];

  for (let i = 0; i < arr.length - tupleLength + 1; i++) {
    for (let j = i + 1; j < arr.length; j++) {
      if (arr[i] + arr[j] === target) {
        const tuple = [arr[i], arr[j]];

        // 检查结果数组中是否已存在相同的元组
        const isDuplicate = result.some((item) =>
          item.every((value, index) => value === tuple[index])
        );

        if (!isDuplicate) {
          result.push(tuple);
        }
      }
    }
  }

  return result;
}

const target = 10;
const arr = [1, 2, 3, 4, 5, 6, 7, 8, 9];
const tupleLength = 2;

const tuples = findTuple(target, arr, tupleLength);
console.log(tuples);