Use of JavaScript cookies ()

JavaScript Cookies

/* Set Cookie*/function setcookie (c_name,c_value,expires) {    var date =  New date ();     date.settime (Date.gettime () + (expires*60*1000));     document.cookie = c_name +  "="  + c_value +  ";     expires= " + date.togmtstring ();} /* The parameters in this function have  cookie  name, value, and number of days to expire. First convert the number of days to a valid date, and then save the  cookie  name, value, and its expiration date in  document.cookie  object */function getcookie (c_name) {    var name = c_name + "=";         var cookie = document.cookie.split (';');         for (var i=0; i<cookie.length; i++) {             var c = cookie[i].trim (); The  //.trim ()   function is used to remove whitespace characters at both ends of a string.     var c = cookiE[i].replace (/(^\s*) | ( \s*$)/g,  "")//use a regular replacement of whitespace characters at both ends of the string.     if  (C.indexof (name) ==0)  return c.substring (name.length,c.length);     }        return  "";}  //Save Cookie //setcookie (cookie name, cookie value, expiration time)  setcookie ("Userman", "123", 5)  // Here is a 5 minute (Date.gettime () + (expires*60*1000))  //get Cookie  var userman = getcookie (" Userman ");  $ (Class). val (Userman)

You cannot use semicolons (;), commas (,), Equals (=), spaces, and Chinese (errors or garbled characters) in the name or value of a cookie. If the above special characters must be used, the escape () function is required to encode (transcode in 16 binary numbers), and if you want to read the value of a cookie with a special character and Chinese, you need to decode the value by using unescape () after extracting it to get the original cookie value;

Use of cookies ()

The library file containing jquery is first included , followed by jquery. Cookies. JS library file.

<script type= "Text/javascript" src= "jquery.min.js" ></script> <script type= "Text/javascript" src= " Jquery.cookie.js "></script> or <script type=" Text/javascript "src=" Zepto.js "></script> < Script type= "Text/javascript" src= "Zepto.cookie.js" ></script>

Use of Jquery.cookie.js

var time = name of "username"//cookie var date = new Date (); Gets the current time Date.settime (Date.gettime () + 300000); System Current time + 5 minutes $ ("cookie"). Val ($.fn.cookie (time));//assigns the cookie value of name = Username to Id=cookie's label var detailtime = $ ("input"). the text ();//Gets the value of input var admin = $ ("#takerTime"). Val (detailtime)//Gets the input $.cookie assigned to Id=takertime (Time,admin,{path : "/", expires:date})

Use of Zepto.cookie.js

var time = name of "username"//cookie var date = new Date (); Get system Time Date.settime (Date.gettime () + 300000); System Current time + 5 minutes $ ("cookie"). Val ($.fn.cookie (time));//assigns the cookie value of name = Username to Id=cookie's label var detailtime = $ ("input"). the text ();//Gets the value of input var admin = $ ("#takerTime"). Val (detailtime)//Gets the input $.fn.cookie assigned to Id=takertime (time,admin,{ Path: "/", expires:date})

Parameter description

1. Syntax: $.cookie (cookie name, cookie value, {path, cookie valid time})

2. $.cookie (time); Reads the value of the time stored in the cookie named.

3. $.cookie (time,admin); Writes the value of admin to a cookie named Time cookie.

4. {path: '/', expires:date} Date=〉cookie save time, date time is 5 minutes, set Hour with sethours () and GetHours method: Date.sethours (Date.gethours () + 1 ), or by multiplying in milliseconds

• The Path:cookie value saves the path, by default only the Web page that sets the cookie can read the Cookie;path: "/": Represents the root directory.

• Expires: A finite date, the value can be a number (from the time the cookie is created, in days) or a Date object, and if no time is set, the cookie is invalidated after the browser is closed.

Use of JavaScript cookies ()