如何获取基于2个键的不同数组列表？

function getDifferentArrays(arrays) {
  const result = [];

  for (let i = 0; i < arrays.length; i++) {
    const array = arrays[i];
    const key1 = array[0];
    const key2 = array[1];
    const uniqueId = key1 + '-' + key2;

    let isDuplicate = false;
    for (let j = 0; j < result.length; j++) {
      const existingArray = result[j];
      const existingUniqueId = existingArray[0] + '-' + existingArray[1];
      if (existingUniqueId === uniqueId) {
        isDuplicate = true;
        break;
      }
    }

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

  return result;
}

// 示例用法
const arrays = [
  ['key1', 'key2', 'value1'],
  ['key1', 'key2', 'value2'],
  ['key3', 'key4', 'value3'],
  ['key3', 'key4', 'value4'],
  ['key1', 'key2', 'value5']
];

const differentArrays = getDifferentArrays(arrays);
console.log(differentArrays);