在jquery中存在测试垂直滚动条失败

Question

我编写了以下代码，它返回undefined

＆＃13;

＆＃13;

if(('#listSearchOptions').scrollHeight !== ('#listSearchOptions').clientHeight){
                    $('#listSearchOptions').css({"height":"auto", "max-height":""}); 
                    console.log("Height..." + ('#listSearchOptions').clientHeight); //results undefined
                }

＆＃13;

＆＃13;

＆＃13;

这里有什么问题？

Answer 1

您错过了$并且使用了常规的JavaScript表达式：将.scrollHeight替换为[0].scrollHeight。并按.clientHeight

替换.height()

这很好用

if($('#listSearchOptions')[0].scrollHeight !== $('#listSearchOptions').height()){
    $('#listSearchOptions').css({"height":"auto", "max-height":""}); 
    console.log("Height..." + $('#listSearchOptions').height()); //results undefined
}