JavaScript manipulation Cookie class instance _javascript tips

This example describes the JavaScript manipulation cookie class. Share to everyone for your reference. Specifically as follows:

Usage:

One, set cookies

var cookie = new Jscookie ();
Normal settings
cookie. Setcookie ("Key1", "Val1");
The expiration time is one year
var expire_time = new Date ();
Expire_time.setfullyear (Expire_time.getfullyear () + 1);
Cookies. Setcookie ("Key2", "Val2", expire_time);
Sets the domain and path with the expiration Time
cookie. Setcookie ("Key3", "Val3", Expire_time, ". cnblogs.com", "/");
Set the cookie for the Ribbon key, which is the K1,K2,K3 cookie, respectively
. Setcookie ("Key4", "k1=1&k2=2&k3=3");

Second, read cookies

Easy to get
cookies. GetCookie ("Key1");
Cookies. GetCookie ("Key2");
Cookies. GetCookie ("Key3");
Cookies. GetCookie ("Key4");
Gets the subkey K1 value cookie for the Key4
. Getchild ("Key4", "K1");

Third, delete

Cookies. Expire ("Key1");
Cookies. Expire ("Key2");
Cookies. Expire ("Key3");
Cookies. Expire ("Key4");

Example:

<script type= "Text/javascript" > String.prototype.Trim = function () {return this.replace (/^\s+/g, ""). Replace (/
 \s+$/g, ""); function Jscookie () {this.
     GetCookie = function (key) {var cookie = Document.cookie;
     var cookiearray = Cookie.split (';');
     var getvalue = ""; for (var i = 0;i<cookiearray.length;i++) {if (Cookiearray[i]. Trim (). substr (0,key.length) = = key) {GetValue = Cookiearray[i].
         Trim (). substr (key.length + 1);
       Break
   } return GetValue;
   }; This. Getchild = function (Cookiekey,childkey) {var child = this.
     GetCookie (Cookiekey);
     var childs = child.split (' & ');
     var getvalue = ""; for (var i = 0;i < childs.length;i++) {if (childs[i). Trim (). substr (0,childkey.length) = = Childkey) {GetValue = Childs[i].
         Trim (). substr (childkey.length + 1);
       Break
   } return GetValue;
   }; This. Setcookie = function (key,vAlue,expire,domain,path) {var cookie = "";
     if (key!= null && value!= null) Cookie + = key + "=" + Value + ";";
     if (expire!= null) cookie + "expires=" + expire.togmtstring () + ";";
     if (domain!= null) cookie + + "domain=" + domain + ";";
     if (path!= null) cookie + = "path=" + path + ";";
   Document.cookie = cookie;
   }; This.
     Expire = function (key) {expire_time = new Date ();
     Expire_time.setfullyear (Expire_time.getfullyear ()-1);
     var cookie = "" + key + "=e;expires=" + Expire_time + ";"
   Document.cookie = cookie; }} </script>

This concludes.

I hope this article will help you with your JavaScript programming.