仅向用户显示一次警报(Show an alert to a user only once)

仅向用户显示一次警报(Show an alert to a user only once)

我希望在首次访问时向我的网站用户显示弹出提醒，但不会在后续访问时显示。

由于我只有基本的HTML和脚本知识，请解释我如何使用cookie或其他浏览器功能实现这一点。

您可以在http://www.hdfbcover.com/上查看我网站的当前状态。

I wish to show users of my website a pop-up alert on their first visit, but not on subsequent visits.

Since I only have basic HTML and scripting knowledge, please explain how I can i implement this using cookies or other browser features.

You can see the current state of my website at http://www.hdfbcover.com/

最满意答案

这是一个使用cookie的例子，你也可以用localStorage而不是cookie做类似的事情。

// Check If Cookie exists and if it doesn't exists if( $.cookie('example') == null ) { // Create cookie $.cookie( 'example', '1', { expires: 7, path: '/' } ); // Display popup // Your code here... }

参考：

jQuery $ .cookie HTML5 localStorage

Here is an example using cookies, you could also do something similar with localStorage rather than the cookie.

// Check If Cookie exists and if it doesn't exists if( $.cookie('example') == null ) { // Create cookie $.cookie( 'example', '1', { expires: 7, path: '/' } ); // Display popup // Your code here... }

Reference:

jQuery $.cookie HTML5 localStorage