js怎么实现给存储的cookie值一个有效期并让次日自动失效

本篇内容主要讲解“js怎么实现给存储的cookie值一个有效期并让次日自动失效”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“js怎么实现给存储的cookie值一个有效期并让次日自动失效”吧!

js怎么实现给存储的cookie值一个有效期，让次日自动失效，重新计数，代码如下：

cookie = {

    get: function (name) {

        var cookieName = encodeURIComponent(name) + ‘=‘,

            cookieStart = document.cookie.indexOf(cookieName),

            cookieValue = null;

        if (~cookieStart) {

            var cookieEnd = document.cookie.indexOf(‘;‘, cookieStart);

            if (!~cookieEnd) {

                cookieEnd = document.cookie.length;

            }

            cookieValue = decodeURIComponent(document.cookie.substring(cookieStart + cookieName.length, cookieEnd));

        }

        return cookieValue;

    },

    set: function (name, value, expires, path, domain, secure) {

        var cookie = encodeURIComponent(name) + ‘=‘ + encodeURIComponent(value);

        expires instanceof Date && (cookie += ‘; expires=‘ + expires.toGMTString());

        path && (cookie += ‘; path=‘ + path);

        domain && (cookie += ‘; domain=‘ + domain);

        secure && (cookie += ‘; secure‘);

        document.cookie = cookie;

    },

    del: function (name, path, domain, secure) {

        this.set(name, ‘‘, new Date(0), path, domain, secure);

    }

}

下面是存储cookie并设置有效期：

//cookie过期时间，次日凌晨

var expires = new Date(new Date(new Date().getTime() + 30*24 * 60 * 60 * 1000).setHours(0, 0, 0, 0));

//需要存储的cookie值

var value=‘100‘

cookie.set("key", value, expires);

到此，相信大家对“js怎么实现给存储的cookie值一个有效期并让次日自动失效”有了更深的了解，不妨来实际操作一番吧！这里是编程网网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！