如何删除cookie?

我创建cookie的功能正确吗?如何删除程序开头的cookie ?有简单的编码吗?

function createCookie(name,value,days)

function setCookie(c_name,value,1) {
  document.cookie = c_name + "=" +escape(value);
}

setCookie('cookie_name',mac);

function eraseCookie(c_name) {
  createCookie(cookie_name,"",-1);
}

当前回答

我在我的网站上使用这个在Chrome和Firefox上工作。

function delete_cookie(name) { document.cookie = name +'=; Path=/;  Domain=' + location.host +  '; Expires=Thu, 01 Jan 1970 00:00:01 GMT; SameSite=None; Secure' }

2021-09-23 00:33:26

其他回答

if ("JSESSIONID".equals(cookie.getName()) || "LtpaToken2".equals(cookie.getName())) {
                cookie.setValue("");
                cookie.setPath("/");
                cookie.setMaxAge(0);
                cookie.setHttpOnly(true);
                response.addCookie(cookie);
}

2022-07-01 20:16:06

要删除一个cookie，我再次设置一个空值，并在1秒内到期。在细节上，我总是使用以下口味中的一种(我更喜欢第二种):

    function setCookie(key, value, expireDays, expireHours, expireMinutes, expireSeconds) {
        var expireDate = new Date();
        if (expireDays) {
            expireDate.setDate(expireDate.getDate() + expireDays);
        }
        if (expireHours) {
            expireDate.setHours(expireDate.getHours() + expireHours);
        }
        if (expireMinutes) {
            expireDate.setMinutes(expireDate.getMinutes() + expireMinutes);
        }
        if (expireSeconds) {
            expireDate.setSeconds(expireDate.getSeconds() + expireSeconds);
        }
        document.cookie = key +"="+ escape(value) +
            ";domain="+ window.location.hostname +
            ";path=/"+
            ";expires="+expireDate.toUTCString();
    }

    function deleteCookie(name) {
        setCookie(name, "", null , null , null, 1);
    }

用法:

setCookie("reminder", "buyCoffee", null, null, 20);
deleteCookie("reminder");

    function setCookie(params) {
        var name            = params.name,
            value           = params.value,
            expireDays      = params.days,
            expireHours     = params.hours,
            expireMinutes   = params.minutes,
            expireSeconds   = params.seconds;

        var expireDate = new Date();
        if (expireDays) {
            expireDate.setDate(expireDate.getDate() + expireDays);
        }
        if (expireHours) {
            expireDate.setHours(expireDate.getHours() + expireHours);
        }
        if (expireMinutes) {
            expireDate.setMinutes(expireDate.getMinutes() + expireMinutes);
        }
        if (expireSeconds) {
            expireDate.setSeconds(expireDate.getSeconds() + expireSeconds);
        }

        document.cookie = name +"="+ escape(value) +
            ";domain="+ window.location.hostname +
            ";path=/"+
            ";expires="+expireDate.toUTCString();
    }

    function deleteCookie(name) {
        setCookie({name: name, value: "", seconds: 1});
    }

用法:

setCookie({name: "reminder", value: "buyCoffee", minutes: 20});
deleteCookie("reminder");

2017-02-18 18:42:12

我曾经从后端生成cookie并重定向到前端。我得到它工作的唯一方法是设置过期日期在过去的背和重定向回到前端

2022-12-31 13:54:53

我在删除一个通过JavaScript制作的cookie时遇到了麻烦，在我添加了主机后它就工作了(滚动下面的代码到右边可以看到location.host)。清除域上的cookie后，尝试以下操作查看结果:

if (document.cookie.length==0)
{
 document.cookie = 'name=example; expires='+new Date((new Date()).valueOf()+1000*60*60*24*15)+'; path=/; domain='+location.host;

 if (document.cookie.length==0) {alert('Cookies disabled');}
 else
 {
  document.cookie = 'name=example; expires=Thu, 01 Jan 1970 00:00:00 GMT; path=/; domain='+location.host;

  if (document.cookie.length==0) {alert('Created AND deleted cookie successfully.');}
  else {alert('document.cookies.length = '+document.cookies.length);}
 }
}

2018-01-16 03:41:07

我们没有在JavaScript中删除cookie的能力，所以要删除它，我们需要创建另一个日期较早的cookie。

集饼干

let expires = null
const cookieName = 'userlogin'
const d = new Date();
d.setTime(d.getTime() + 2 * 24 * 60 * 60 * 1000);
document.cookie = cookieName + "=" + value+ ";" + expires + ";path=/";

删除饼干

let expires = null
const d = new Date();
d.setTime(d.getTime() - 2 * 24 * 60 * 60 * 1000);
expires = "expires=" + d.toUTCString();
document.cookie = 'userlogin' + "=" + value+ ";" + expires + ";path=/";

2023-01-31 19:58:51

如何删除cookie?

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