返回数组中包含字符串的所有数组

function findArraysContainingString(arr, str) {
  let result = [];

  function search(array) {
    for (let i = 0; i < array.length; i++) {
      if (Array.isArray(array[i])) {
        search(array[i]);
      } else if (typeof array[i] === 'string' && array[i].includes(str)) {
        result.push(array);
        break;
      }
    }
  }

  search(arr);
  return result;
}

// 示例数组
const multiDimensionalArray = [
  ['apple', 'banana'],
  ['cherry', ['date', 'elderberry']],
  ['fig', 'grape']
];

// 查找包含字符串 'date' 的所有子数组
const result = findArraysContainingString(multiDimensionalArray, 'date');
console.log(result); // 输出: [['cherry', ['date', 'elderberry']]]