JavaScript cookies Save, get and delete instances

Source: Internet
Author: User
Tags setcookie

function Setcookie (name, value)//cookies set JS
{
var argv = setcookie.arguments;
var argc = setCookie.arguments.length;
var expires = (argc > 2)? ARGV[2]: null;
if (expires!=null)
{
var largeexpdate = new Date ();
Largeexpdate.settime (Largeexpdate.gettime () + (expires*1000*3600*24));
}
Document.cookie = name + "=" + Escape (value) + ((expires = null)? "" : ("; Expires= "+largeexpdate.togmtstring ()));
}

function GetCookie (Name)//cookies Read JS
{
var search = Name + "="
if (Document.cookie.length > 0)
{
offset = document.cookie.indexOf (search)
if (offset!=-1)
{
Offset + = Search.length
End = Document.cookie.indexOf (";", offset)
if (end = = 1) end = Document.cookie.length
return unescape (offset, end) (document.cookie.substring)
}
else return ""
}
}

Detailed description


One, set cookies

var cookie = new Jscookie ();
Normal settings
Cookies. Setcookie ("Key1", "val1");
Expiration time is one year
var expire_time = new Date ();
Expire_time.setfullyear (Expire_time.getfullyear () + 1);
Cookies. Setcookie ("Key2", "Val2", expire_time);
Set the domain and path with expiration time
Cookies. Setcookie ("Key3", "Val3", Expire_time, ". cnblogs.com", "/");
Set the cookie for the Ribbon key, which is K1,K2,K3, respectively.
Cookies. 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 of the Key4
Cookies. Getchild ("Key4", "K1");

Third, delete

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

if (GetCookie ("Yxjok")!= "OK") {
Determine if the Yxjok value in the cookie is not OK, not the advertisement below.
document.write (' <div id= "JB51_YXJ" ><a href= "http://www.111cn.net" onclick= "Closeyxj ()" target= "_blank" >/></a></div> ');
}
function Closeyxj () {
Turn off the reality of advertising. And the cookies record has been shown, here the function is mainly closed after a period of time does not show the default is 24 hours.
$ ("Jb51_yxj"). style.display= ' None ';
Setcookie ("Yxjok", "OK", 10);
}

function Setadcookie (name, value)//mainly modifies the expiration time of cookies for a few minutes.
{
var argv = setadcookie.arguments;
var argc = setADCookie.arguments.length;
var expires = (argc > 2)? ARGV[2]: null;
if (expires!=null)
{
var largeexpdate = new Date ();
Largeexpdate.settime (Largeexpdate.gettime () + (expires*1000*300));
}
Document.cookie = name + "=" + Escape (value) + ((expires = null)? "" : ("; Expires= "+largeexpdate.togmtstring ()));
}

JavaScript Tutorial Cookies Save, get and delete instances

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