Question

以下函数在页面加载时在浏览器的控制台窗口中抛出错误：

function getRight() {
    return ($(window).width() - ($('[data-toggle="popover"]').offset().left + $('[data-toggle="popover"]').outerWidth()))
  }

错误：

Uncaught TypeError: Cannot read property 'left' of undefined
    at getRight (application.js:12)
    at HTMLDocument.<anonymous> (application.js:30)
    at j (jquery.js:3099)
    at Object.fireWith [as resolveWith] (jquery.js:3211)
    at Function.ready (jquery.js:3417)
    at HTMLDocument.I (jquery.js:3433)
getRight @ application.js:12
(anonymous) @ application.js:30
j @ jquery.js:3099
fireWith @ jquery.js:3211
ready @ jquery.js:3417
I @ jquery.js:3433

该页面正在加载此jQuery：

https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js

Answer 1

基本上（没有看到相关的HTML）您尝试获取偏移量的元素不存在：

$('[data-toggle="popover"]')

Bootstrap 3 jQuery偏移javascript错误

1 个答案: