比较嵌入数组的值并获取目标值

function findTargetValue(target, array) {
  for (let i = 0; i < array.length; i++) {
    const element = array[i];
    if (Array.isArray(element)) {
      const result = findTargetValue(target, element);
      if (result !== undefined) {
        return result;
      }
    } else if (element === target) {
      return element;
    }
  }
}

// 示例用法
const nestedArray = [1, 2, [3, 4, [5, 6, [7, 8]]]];
const targetValue = 7;
const result = findTargetValue(targetValue, nestedArray);
console.log(result); // 输出 7