cookie封装

const cookie = (function () {
    //cookie的格式
    // name=value;expires=有效时间;path=路径;domian=域名;secure 安全 https
    //1.设置cookie
    function setCookie(name, value, days, path, domian, secure) {
        var strCookie = '';
        if (name) {
            strCookie += name + "=" + value + ";";
        }
        if (typeof (days) === "number") {
            var date = new Date();
            date.setDate(date.getDate() + days);
            strCookie += "expires=" + date + ";"
        }
        if (path) {
            strCookie += "path=" + path + ";"
        }
        if (domian) {
            strCookie += "domian=" + domian + ";"
        }
        if (secure) {
            strCookie += "secure";
        }
        document.cookie = strCookie;
    }
    //2.获取cookie
    function getCookieAll() {
        var data = {};
        var strCookie = document.cookie; // age=20; name=周杰伦
        var arr = strCookie.split("; "); //[age=20]  [name=周杰伦]
        arr.forEach(function (el) {
            var list = el.split("="); // [age,20]   [name,周杰伦]
            data[list[0]] = list[1];
        })
        return data;
    }
    //3.通过指定的名称获取cookie值
    function getCookieByName(name) {
        var data = getCookieAll(); //返回是一个对象
        return data[name];
    }
    //4.封装 删除cookie
    function removeCookie(name) {
        setCookie(name, "", -1);
    }
    //暴露方法
    return {
        setCookie,//设置
        getCookieByName,//获取
        removeCookie//删除
    }

})();