如何使用JavaScript删除当前域的所有cookie ?


当前回答

在测试了多种浏览器中列出的几乎所有方法后,我发现几乎没有一种方法能达到50%的效果。

如果需要,请帮忙纠正,但我要在这里发表我的意见。下面的方法分解了所有内容,基本上基于设置部分构建cookie值字符串,并包括路径字符串的一步一步构建,当然从/开始。

希望这对其他人有所帮助,我希望任何批评都能以完善这种方法的形式出现。起初,我想要一个简单的1-liner,因为有些人寻求,但JS cookie是那些不那么容易处理的事情之一。

;(function() {
    if (!window['deleteAllCookies'] && document['cookie']) {
        window.deleteAllCookies = function(showLog) {
            var arrCookies = document.cookie.split(';'),
                arrPaths = location.pathname.replace(/^\//, '').split('/'), //  remove leading '/' and split any existing paths
                arrTemplate = [ 'expires=Thu, 01-Jan-1970 00:00:01 GMT', 'path={path}', 'domain=' + window.location.host, 'secure=' ];  //  array of cookie settings in order tested and found most useful in establishing a "delete"
            for (var i in arrCookies) {
                var strCookie = arrCookies[i];
                if (typeof strCookie == 'string' && strCookie.indexOf('=') >= 0) {
                    var strName = strCookie.split('=')[0];  //  the cookie name
                    for (var j=1;j<=arrTemplate.length;j++) {
                        if (document.cookie.indexOf(strName) < 0) break; // if this is true, then the cookie no longer exist
                        else {
                            var strValue = strName + '=; ' + arrTemplate.slice(0, j).join('; ') + ';';  //  made using the temp array of settings, putting it together piece by piece as loop rolls on
                            if (j == 1) document.cookie = strValue;
                            else {
                                for (var k=0;k<=arrPaths.length;k++) {
                                    if (document.cookie.indexOf(strName) < 0) break; // if this is true, then the cookie no longer exist
                                    else {
                                        var strPath = arrPaths.slice(0, k).join('/') + '/'; //  builds path line 
                                        strValue = strValue.replace('{path}', strPath);
                                        document.cookie = strValue;
                                    }
                                }
                            }
                        }
                    }
                }
            }
            showLog && window['console'] && console.info && console.info("\n\tCookies Have Been Deleted!\n\tdocument.cookie = \"" + document.cookie + "\"\n");
            return document.cookie;
        }
    }
})();

其他回答

Jquery:

var cookies = $.cookie();
for(var cookie in cookies) {
$.removeCookie(cookie);
}

香草JS

function clearListCookies()
{   
 var cookies = document.cookie.split(";");
 for (var i = 0; i < cookies.length; i++)
  {   
    var spcook =  cookies[i].split("=");
    deleteCookie(spcook[0]);
  }
  function deleteCookie(cookiename)
   {
    var d = new Date();
    d.setDate(d.getDate() - 1);
    var expires = ";expires="+d;
    var name=cookiename;
    //alert(name);
    var value="";
    document.cookie = name + "=" + value + expires + "; path=/acc/html";                    
}
window.location = ""; // TO REFRESH THE PAGE
}

在经历了一些挫折之后,我自己拼凑了这个函数,它将尝试从所有路径中删除一个命名的cookie。只需为每个cookie调用这个函数,就可以更接近于删除每个cookie。

function eraseCookieFromAllPaths(name) {
    // This function will attempt to remove a cookie from all paths.
    var pathBits = location.pathname.split('/');
    var pathCurrent = ' path=';

    // do a simple pathless delete first.
    document.cookie = name + '=; expires=Thu, 01-Jan-1970 00:00:01 GMT;';

    for (var i = 0; i < pathBits.length; i++) {
        pathCurrent += ((pathCurrent.substr(-1) != '/') ? '/' : '') + pathBits[i];
        document.cookie = name + '=; expires=Thu, 01-Jan-1970 00:00:01 GMT;' + pathCurrent + ';';
    }
}

不同的浏览器有不同的行为,但这对我来说是有效的。 享受。

这对我来说很管用:

function deleteCookie(name) {
  document.cookie = 
    `${name}=; Expires=Thu, 01 Jan 1970 00:00:01 GMT; Path=/`;

    // Remove it from local storage too
    window.localStorage.removeItem(name);
}

function deleteAllCookies() {
  const cookies = document.cookie.split("; ");

  cookies.forEach((cookie) => {
    const name = cookie.split("=").shift();
    this.deleteCookie(name);
  });

  // Some sites backup cookies in `localStorage`
  window.localStorage.clear();
}

这个答案受到第二个答案和W3Schools的影响

document.cookie.split(';').forEach(function(c) {
  document.cookie = c.trim().split('=')[0] + '=;' + 'expires=Thu, 01 Jan 1970 00:00:00 UTC;';
});

似乎有效果

编辑:哇,几乎和扎克的Stack Overflow把它们放在一起的有趣方式一模一样。

编辑:NVM显然是暂时的

如果你只关心清除安全源上的Cookie,你可以使用Cookie Store API和它的.delete()方法。

cookieStore.getAll().then(cookies => cookies.forEach(cookie => {
    console.log('Cookie deleted:', cookie);
    cookieStore.delete(cookie.name);
}));

访问caniuse.com表,查看Cookie Store API的浏览器支持情况。