如何删除Cookie？

本文翻译自：How to delete a cookie?

Is my function of creating a cookie correct? 我创建cookie的功能是否正确？ How do I delete the cookie at the beginning of my program? 如何在程序开始时删除cookie？ is there a simple coding? 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);
}

#1楼

参考：https://stackoom.com/question/8zqs/如何删除Cookie

#2楼

would this work? 这会工作吗？

function eraseCookie(name) {document.cookie = name + '=; Max-Age=0'
}

I know Max-Age causes the cookie to be a session cookie in IE when creating the cookie. 我知道Max-Age在创建cookie时会导致该cookie是IE中的会话cookie。 Not sure how it works when deleting cookies. 不确定删除Cookie时的工作方式。

#3楼

Here a good link on Quirksmode . 这是Quirksmode上的一个很好的链接。

function setCookie(name,value,days) {var expires = "";if (days) {var date = new Date();date.setTime(date.getTime() + (days*24*60*60*1000));expires = "; expires=" + date.toUTCString();}document.cookie = name + "=" + (value || "")  + expires + "; path=/";
}
function getCookie(name) {var nameEQ = name + "=";var ca = document.cookie.split(';');for(var i=0;i < ca.length;i++) {var c = ca[i];while (c.charAt(0)==' ') c = c.substring(1,c.length);if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);}return null;
}
function eraseCookie(name) {   document.cookie = name+'=; Max-Age=-99999999;';
}

#4楼

Try this: 尝试这个：

function delete_cookie( name, path, domain ) {if( get_cookie( name ) ) {document.cookie = name + "=" +((path) ? ";path="+path:"")+((domain)?";domain="+domain:"") +";expires=Thu, 01 Jan 1970 00:00:01 GMT";}
}

Or: 要么：

function delete_cookie( name ) {document.cookie = name + '=; expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}

#5楼

Here is an implementation of a delete cookie function with unicode support from Mozilla: 这是来自Mozilla的具有unicode支持的delete cookie函数的实现：

function removeItem(sKey, sPath, sDomain) {document.cookie = encodeURIComponent(sKey) + "=; expires=Thu, 01 Jan 1970 00:00:00 GMT" + (sDomain ? "; domain=" + sDomain : "") + (sPath ? "; path=" + sPath : "");
}removeItem("cookieName");

If you use AngularJs, try $cookies.remove (underneath it uses a similar approach ): 如果您使用AngularJs，请尝试$ cookies.remove （在其下面使用类似的方法）：

$cookies.remove('cookieName');

#6楼

To delete a cookie I set it again with an empty value and expiring in 1 second. 要删除Cookie，我将其再次设置为空值并在1秒钟后过期。 In details, I always use one of the following flavours (I tend to prefer the second one): 详细地说，我总是使用以下一种口味（我倾向于第二种）：

1. 1。

    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);}

Usage: 用法：

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

2 2

    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});}

Usage: 用法：

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

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如何删除Cookie？

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