js 封装cookie操作的函数代码_javascript技巧

核心代码：

复制代码 代码如下:

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);
}
};

测试：

<title></title> <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>
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