js encapsulates the function code of cookie operation_javascript skills

Core code:

Copy code The code is as follows:

var cookie={
setCookie:function (name, value, iDay) {
var oDate = new Date();
oDate.setDate(oDate.getDate() iDay);
document.cookie = name '=' value ';expires=' oDate;
},
getCookie:function (name) {
var arr = document.cookie.split('; ');
for (var i = arr.length - 1; i >= 0; i--) {
var arr2 = arr[i].split('=');
if(arr2[0]===name){
return arr2[1];
}
}
return '';
},
removeCookie:function (name) {
cookie.setCookie(name,1,-1) ;
}
};

Test:

<title></title>
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

]<script> var cookie={ setCookie:function (name, value, iDay) { var oDate = new Date(); oDate.setDate(oDate.getDate()+iDay); document.cookie = name+'='+value+';expires='+oDate; }, getCookie:function (name) { var arr = document.cookie.split('; '); for (var i = arr.length - 1; i >= 0; i--) { var arr2 = arr[i].split('='); if(arr2[0]===name){ return arr2[1]; } } return ''; }, removeCookie:function (name) { cookie.setCookie(name,1,-1); } }; cookie.setCookie('username','iceshu',33); // setCookie('pwd','ff',365); cookie.removeCookie('username'); alert(document.cookie) alert(cookie.getCookie('pwd')); </script>