如何从数组中排除嵌套条件的数组

function excludeNestedArrays(arr) {
  var result = [];
  
  for (var i = 0; i < arr.length; i++) {
    if (Array.isArray(arr[i])) {
      for (var j = 0; j < arr[i].length; j++) {
        if (!Array.isArray(arr[i][j])) {
          result.push(arr[i][j]);
        }
      }
    } else {
      result.push(arr[i]);
    }
  }
  
  return result;
}

// 示例用法
var originalArray = [1, [2, 3], [4, [5, 6]], 7];
var excludedArray = excludeNestedArrays(originalArray);
console.log(excludedArray); // 输出: [1, 2, 3, 7]