Javascript 未捕获的类型错误:无法读取未定义的属性“顶部”
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Uncaught TypeError: Cannot read property 'top' of undefined
提问by Giri
I have some jQuery code like this
我有一些像这样的 jQuery 代码
$(document).ready(function(){
$('.content-nav a').on('click',function(){
var str = $(this).attr("href");
var the_id = str.substr(1);
$("#container").animate({ scrollTop: $(the_id).offset().top }, 1000);
});
});
When I click the link i'm getting error like Uncaught TypeError: Cannot read property 'top' of undefined
当我点击链接时,我收到了类似的错误 Uncaught TypeError: Cannot read property 'top' of undefined
Can someone tell me whats wrong?
有人可以告诉我出了什么问题吗?
I'm using jQuery 1.8.3 which is loaded from google api.
我正在使用从 google api 加载的 jQuery 1.8.3。
回答by Denys Séguret
If the_idis an id, then you need
如果the_id是一个id,那么你需要
$('#'+the_id).offset().top

