cookie存储、获取、删除封装方法总结

/ 获取cookie/

function getCookie (name){          //export暴露方法的写法export const getCookie = (name) => {

vararr,reg=newRegExp('(^| )'+name+'=([^;]*)(;|$)')

if(arr=document.cookie.match(reg)) {

returnunescape(arr[2])

}else{

returnnull

  }

}

/储存cookie/

function setCookie (cName, value, expiredays) => {

varexdate=newDate()

exdate.setDate(exdate.getDate() +expiredays)

document.cookie=cName+'='+escape(value) +

((expiredays===null) ?'':';expires='+exdate.toGMTString())

}

/删除cookie/

function delCookie(name){

varexp=newDate()

exp.setTime(exp.getTime() -1)

varcval=getCookie(name)

if(cval!=null) {

document.cookie=name+'='+cval+';expires='+exp.toGMTString()

  }

}

调用：存储cookie：setCookie('user_name', data.user.user_name, 30)       //存储名、存储值、过期时间

获取cookie：getCookie('user_name')

          删除cookie：delCookie('user_name')