两个for循环都没有查找到结果时，输出一段文字来提示，如何完成

Question

如以下代码所示，在两个for循环都没有查到结果时，要输出一些文字来提示，怎么来实现？注：两个for循环的长度不同

 for (var i = 0,len = markers.length; i < len; i++) {
            if (name == markers[i].name) {
                marker = markers[i];
            }
        }
for (var i = 0,len2 = polyLineArray.length; i < len2; i++) {
            if (name == polyLineArray[i].name) {
                polyLine = polyLineArray[i];
            }
        }

Answer 1

  var find=false///////////
 for (var i = 0,len = markers.length; i < len; i++) {
            if (name == markers[i].name) {
                        find=true///////
                marker = markers[i];
            }
        }
for (var i = 0,len2 = polyLineArray.length; i < len2; i++) {
            if (name == polyLineArray[i].name) {
                        find=true///////
                polyLine = polyLineArray[i];
            }
        }

                if(!find)alert('没找到内容！！')