原生JS代码封装（添加cookie，获取cookie）

// 添加cookie function addCookie(key,value,days) {     var now = new Date();     now.setDate(now.getDate() + days);     document.cookie = key+"="+value+"; expires="+now; }
// 获取cookie function getCookie(key) {     var str = document.cookie;     if(!str) return null;          var reg1 = new RegExp(key+"=([^;]+)$");     var reg2 = new RegExp(key+"=([^;]+);");     if(reg1.test(str)) {         return str.match(reg1)[1];     } else {         return str.match(reg2)[1];     } }

标签：reg1,封装,key,JS,cookie,str,var,now
来源： https://www.cnblogs.com/sunyang-001/p/10812984.html