Javascript 仅清除特定 cookie
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Clearing only specific cookies
提问by Varada
How can I clear only two cookies using JavaScript?
如何使用 JavaScript 只清除两个 cookie?
I use the below code to set these cookies.
我使用以下代码来设置这些 cookie。
function setCookie(c_name, value, exdays)
{
var exdate = new Date();
exdate.setDate(exdate.getDate() + exdays);
var c_value = escape(value) + ((exdays==null) ? "" : ";expires=" + exdate.toUTCString());
document.cookie = c_name + "=" + c_value;
}
回答by Gumbo
A cookie is expired if the Expiresparameter value is a date in the past. So just set the value to a date in the past:
如果Expires参数值是过去的日期,则cookie 已过期。所以只需将值设置为过去的日期:
function deleteCookie(c_name) {
document.cookie = encodeURIComponent(c_name) + "=deleted; expires=" + new Date(0).toUTCString();
}
回答by Shpokas
use the same function setCookie(c_name,value,exdays), passing exdays = -1. That will set expiry date to yesterday.
使用相同的函数 setCookie(c_name,value,exdays),传递 exdays = -1。这会将到期日期设置为昨天。