基于嵌套数组的过滤返回全部

function filterNestedArray(arr, condition) {
  let result = [];

  function recursiveFilter(arr) {
    for (let i = 0; i < arr.length; i++) {
      if (Array.isArray(arr[i])) {
        recursiveFilter(arr[i]);
      } else {
        if (condition(arr[i])) {
          result.push(arr[i]);
        }
      }
    }
  }

  recursiveFilter(arr);
  return result;
}

// 示例用法
const nestedArray = [1, [2, [3, 4]], [5, 6], 7];
const filteredArray = filterNestedArray(nestedArray, (item) => item > 3);
console.log(filteredArray); // 输出 [4, 5, 6, 7]